diff --git a/README.md b/README.md
index 95d7786fe..8f0fbdb08 100644
--- a/README.md
+++ b/README.md
@@ -43,3 +43,32 @@
 - 모든 기능을 TDD로 구현해 단위 테스트가 존재해야 한다. 단, UI(System.out, System.in) 로직은 제외
 - Enum 클래스를 적용해 프로그래밍을 구현한다.
 - 일급 컬렉션을 쓴다.
+
+
+### 4단계 로또 수동 기능구현 목록 
+- 현재 로또 생성기는 자동 생성 기능만 제공한다. 사용자가 수동으로 추첨 번호를 입력할 수 있도록 해야 한다.
+- 입력한 금액, 자동 생성 숫자, 수동 생성 번호를 입력하도록 해야 한다.
+  - 입력값 받는 순서: 
+    - 구매금액을 입력해주세요 
+    - 수동으로 구매할 로또 수를 입력해주세요 
+    - 수동으로 구매할 번호를 입력해주세요 
+    - 수동으로 3장, 자동으로 11장을 구매했습니다
+    - 지난주 당첨 번호를 입력해주세요 
+    - 보너스볼을 입력해주세요 
+
+### 4단계 로또 수동 프로그래밍 요구사항 
+- 모든 원시값과 문자열을 포장한다.
+- 예외 처리를 통해 에러가 발생하지 않도록 한다.
+
+### 4단계 힌트 
+모든 원시값과 문자열을 포장한다.
+로또 숫자 하나는 Int다. 이 숫자 하나를 추상화한 LottoNumber를 추가해 구현한다.
+예외 처리를 통해 에러가 발생하지 않도록 한다.
+
+
+참고로 코틀린에서는 아래와 같이 예외 처리를 한다. 장기적으로는 아래와 같이 예외 처리하는 걸 연습해 본다.
+
+- 논리적인 오류일 때만 예외를 던진다.
+- 논리적인 오류가 아니면 예외를 던지지 말고 null을 반환한다.
+- 실패하는 경우가 복잡해서 null로 처리할 수 없으면 sealed class를 반환한다.
+- 일반적인 코틀린 코드에서 try-catch를 사용하지 않는다. --> 왜 ? 
\ No newline at end of file
diff --git a/src/main/kotlin/lotto/controller/LottoController.kt b/src/main/kotlin/lotto/controller/LottoController.kt
index b88c93eb4..4dd3c1a0c 100644
--- a/src/main/kotlin/lotto/controller/LottoController.kt
+++ b/src/main/kotlin/lotto/controller/LottoController.kt
@@ -3,8 +3,8 @@ package lotto.controller
 import lotto.domain.LottoCalculator
 import lotto.domain.LottoFactory
 import lotto.domain.LottoResult
-import lotto.domain.model.Lotto
-import lotto.domain.model.LottoNumber
+import lotto.domain.Lotto
+import lotto.domain.LottoNumber
 import lotto.view.InputView
 import lotto.view.ResultView
 import java.math.BigDecimal
@@ -23,8 +23,8 @@ object LottoController {
         // 총 구매 로또 개수
         ResultView.printTotalPurchaseCount(totalLottoCount)
 
+        val myLottoList = createMyLottoList(totalLottoCount)
         // 나의 로또 번호 리스트 출력
-        val myLottoList = LottoFactory(totalLottoCount).createLottoList()
         ResultView.printLottoNumbers(myLottoList)
 
         // 결과 출력
@@ -32,22 +32,33 @@ object LottoController {
         ResultView.printLottoResult(resultMap = result.resultMap)
         ResultView.printProfitRate(
             profitRate =
-                LottoCalculator.calculateProfitRate(
-                    result.getTotalProfit(),
-                    totalPurchaseAmount,
-                ),
+            LottoCalculator.calculateProfitRate(
+                result.getTotalProfit(),
+                totalPurchaseAmount,
+            ),
         )
     }
 
     private fun getLottoResult(myLottoList: List<Lotto>): LottoResult {
-        val winningNumbers = InputView.readWinningLotto(InputView.ENTER_LAST_WINNING_NUMBER)
-        val bonusLottoNumber = InputView.readBonusLotto(InputView.ENTER_BONUS_BALL)
+        val winningNumbers = InputView.readWinningLotto()
+        val bonusLottoNumber = InputView.readBonusLotto()
         val result =
             LottoResult(
                 winningLotto = LottoFactory.fromList(winningNumbers),
                 bonusLottoNumber = LottoNumber(bonusLottoNumber),
-                myLottoList = myLottoList,
+                myLottos = myLottoList,
             )
         return result
     }
+
+    private fun createMyLottoList(totalLottoCount: Int): List<Lotto> {
+        val manualLottoCount = InputView.readManualLottoCount()
+        val manualLottoNumberList = InputView.readManualLottoList(manualLottoCount)
+
+        val myLottoList = LottoFactory(
+            autoGeneratedLottoCount = totalLottoCount - manualLottoCount,
+            manualLottoList = manualLottoNumberList
+        ).createLottoList()
+        return myLottoList
+    }
 }
diff --git a/src/main/kotlin/lotto/domain/model/Lotto.kt b/src/main/kotlin/lotto/domain/Lotto.kt
similarity index 94%
rename from src/main/kotlin/lotto/domain/model/Lotto.kt
rename to src/main/kotlin/lotto/domain/Lotto.kt
index e378d1d78..d39b24f5b 100644
--- a/src/main/kotlin/lotto/domain/model/Lotto.kt
+++ b/src/main/kotlin/lotto/domain/Lotto.kt
@@ -1,4 +1,4 @@
-package lotto.domain.model
+package lotto.domain
 
 @JvmInline
 value class Lotto(val value: List<LottoNumber>) {
diff --git a/src/main/kotlin/lotto/domain/LottoFactory.kt b/src/main/kotlin/lotto/domain/LottoFactory.kt
index 3e8e269be..cebad20e7 100644
--- a/src/main/kotlin/lotto/domain/LottoFactory.kt
+++ b/src/main/kotlin/lotto/domain/LottoFactory.kt
@@ -1,16 +1,23 @@
 package lotto.domain
 
-import lotto.domain.model.Lotto
-import lotto.domain.model.LottoNumber
 import lotto.util.NumberGenerator
 import lotto.util.RandomNumberGenerator
 
 class LottoFactory(
-    private val totalLottoCount: Int,
+    private val autoGeneratedLottoCount: Int,
+    private val manualLottoList: List<List<Int>>,
     private val numberGenerator: NumberGenerator = RandomNumberGenerator(),
 ) {
     fun createLottoList(): List<Lotto> {
-        return List(totalLottoCount) {
+        return buildList {
+            addAll(manualLottoList.map { fromList(it) })
+            addAll(autoGeneratedLottoList())
+        }
+    }
+
+    private fun autoGeneratedLottoList(): List<Lotto> {
+        check(autoGeneratedLottoCount > 0) { "수동으로 생성하는 로또의 개수는 전체 로또 수를 초과할 수 없습니다." }
+        return List(autoGeneratedLottoCount) {
             numberGenerator
                 .getNumbers(Lotto.LOTTO_COUNT)
                 .let { list -> Lotto(list.map { LottoNumber.from(it) }) }
diff --git a/src/main/kotlin/lotto/domain/model/LottoNumber.kt b/src/main/kotlin/lotto/domain/LottoNumber.kt
similarity index 95%
rename from src/main/kotlin/lotto/domain/model/LottoNumber.kt
rename to src/main/kotlin/lotto/domain/LottoNumber.kt
index 59d2313f0..957a119f6 100644
--- a/src/main/kotlin/lotto/domain/model/LottoNumber.kt
+++ b/src/main/kotlin/lotto/domain/LottoNumber.kt
@@ -1,4 +1,4 @@
-package lotto.domain.model
+package lotto.domain
 
 @JvmInline
 value class LottoNumber(val value: Int) {
diff --git a/src/main/kotlin/lotto/domain/LottoResult.kt b/src/main/kotlin/lotto/domain/LottoResult.kt
index 006e8e371..054ce8217 100644
--- a/src/main/kotlin/lotto/domain/LottoResult.kt
+++ b/src/main/kotlin/lotto/domain/LottoResult.kt
@@ -1,20 +1,17 @@
 package lotto.domain
 
-import lotto.domain.model.Lotto
-import lotto.domain.model.LottoNumber
-import lotto.domain.model.Rank
 import java.math.BigDecimal
 
 class LottoResult(
     private val winningLotto: Lotto,
     private val bonusLottoNumber: LottoNumber,
-    myLottoList: List<Lotto>,
+    myLottos: List<Lotto>,
 ) {
     val resultMap: Map<Rank, Int>
 
     init {
         resultMap = Rank.entries.associateWith { 0 }.toMutableMap()
-        myLottoList.forEach { lotto ->
+        myLottos.forEach { lotto ->
             getRank(lotto)?.let { rank ->
                 var rankCount = resultMap.getOrDefault(rank, 0)
                 resultMap[rank] = ++rankCount
diff --git a/src/main/kotlin/lotto/domain/model/Rank.kt b/src/main/kotlin/lotto/domain/Rank.kt
similarity index 87%
rename from src/main/kotlin/lotto/domain/model/Rank.kt
rename to src/main/kotlin/lotto/domain/Rank.kt
index 34abc1d88..93549946f 100644
--- a/src/main/kotlin/lotto/domain/model/Rank.kt
+++ b/src/main/kotlin/lotto/domain/Rank.kt
@@ -1,4 +1,4 @@
-package lotto.domain.model
+package lotto.domain
 
 import java.math.BigDecimal
 
@@ -14,14 +14,13 @@ enum class Rank(val prizeMoney: BigDecimal, val matchingNumberCount: Int) {
         fun fromMatchCount(
             matchCount: Int,
             isMatchBonus: Boolean,
-        ): Rank {
+        ): Rank? {
             return if (isMatchBonus && matchCount == 5) {
                 SECOND
             } else if (matchCount == 5) {
                 THIRD
             } else {
                 entries.find { matchCount == it.matchingNumberCount }
-                    ?: throw IllegalArgumentException("invalid count $matchCount")
             }
         }
 
diff --git a/src/main/kotlin/lotto/view/InputView.kt b/src/main/kotlin/lotto/view/InputView.kt
index 1320daa41..49c12722f 100644
--- a/src/main/kotlin/lotto/view/InputView.kt
+++ b/src/main/kotlin/lotto/view/InputView.kt
@@ -4,23 +4,50 @@ import java.math.BigDecimal
 
 object InputView {
     fun readTotalPurchaseAmountAsBigDecimal(): BigDecimal {
-        return readlnOrNull()?.trim()?.toBigDecimalOrNull() ?: BigDecimal.ZERO
+        return readlnOrNull()?.trim()?.toBigDecimal() ?: throw IllegalStateException("유효한 원화 형식이 아닙니다")
     }
 
-    fun readWinningLotto(promptMessage: String): List<Int> {
-        println(promptMessage)
-        val winningLotto = readlnOrNull()?.split(",")?.map { it.trim().toIntOrNull() ?: 0 }
+    fun readWinningLotto(): List<Int> {
+        println(ENTER_LAST_WINNING_NUMBER)
+        val winningLotto = readlnOrNull()?.split(",")?.map { it.trim().toInt() }
         require(winningLotto?.size == LOTTO_SIZE) { "Lotto size must be 6" }
         return winningLotto ?: throw IllegalStateException("Separate Lotto numbers by comma (,)")
     }
 
-    fun readBonusLotto(promptMessage: String): Int {
-        println(promptMessage)
-        val bonusLottoNumber = readlnOrNull()?.trim()?.toIntOrNull() ?: 0 // single number
+    fun readBonusLotto(): Int {
+        println(ENTER_BONUS_BALL)
+        val bonusLottoNumber = readlnOrNull()?.trim()?.toInt() ?: throw IllegalStateException("정수를 입력해 주세요")
         return bonusLottoNumber
     }
 
-    const val ENTER_LAST_WINNING_NUMBER = "지난 주 당첨 번호를 입력해 주세요."
-    const val ENTER_BONUS_BALL = "보너스 볼을 입력해 주세요."
+    fun readManualLottoCount(): Int {
+        println(ENTER_MANUAL_LOTTO_COUNT)
+        val manualLottoCount = readlnOrNull()?.trim()?.toInt() ?: throw IllegalStateException("정수를 입력해 주세요")
+        return manualLottoCount
+    }
+
+    fun readManualLottoList(count: Int): List<List<Int>> {
+        val manualLottoNumbers = mutableListOf<List<Int>>()
+        println(ENTER_MANUAL_LOTTO)
+        repeat(count) {
+            manualLottoNumbers.add(readManualLotto())
+        }
+        return manualLottoNumbers
+    }
+
+    private fun readManualLotto(): List<Int> {
+        val input =
+            readlnOrNull()?.trim()
+                ?.split(INPUT_SEPARATOR_COMMA)
+                ?.map { it.trim().toInt() }
+                ?: throw IllegalStateException("Separate Lotto numbers by comma (,)")
+        return input
+    }
+
+    private const val ENTER_LAST_WINNING_NUMBER = "지난 주 당첨 번호를 입력해 주세요."
+    private const val ENTER_BONUS_BALL = "보너스 볼을 입력해 주세요."
+    private const val ENTER_MANUAL_LOTTO_COUNT = "수동으로 구매할 로또 수를 입력해 주세요."
+    private const val ENTER_MANUAL_LOTTO = "수동으로 구매할 번호를 입력해 주세요. (예: 8, 21, 23, 41, 42, 43)"
     private const val LOTTO_SIZE = 6
+    private const val INPUT_SEPARATOR_COMMA = ","
 }
diff --git a/src/main/kotlin/lotto/view/ResultView.kt b/src/main/kotlin/lotto/view/ResultView.kt
index fa4795727..bfc18f4d8 100644
--- a/src/main/kotlin/lotto/view/ResultView.kt
+++ b/src/main/kotlin/lotto/view/ResultView.kt
@@ -1,7 +1,7 @@
 package lotto.view
 
-import lotto.domain.model.Lotto
-import lotto.domain.model.Rank
+import lotto.domain.Lotto
+import lotto.domain.Rank
 import java.math.BigDecimal
 
 object ResultView {
diff --git a/src/test/kotlin/lotto/domain/LottoCalculatorTest.kt b/src/test/kotlin/lotto/domain/LottoCalculatorTest.kt
index abb8c85c4..e3476c085 100644
--- a/src/test/kotlin/lotto/domain/LottoCalculatorTest.kt
+++ b/src/test/kotlin/lotto/domain/LottoCalculatorTest.kt
@@ -48,7 +48,7 @@ class LottoCalculatorTest {
     }
 
     @Test
-    fun `{given} 총 구매 금액이 0원일 경우 {when} calculateTotalProfit()  {then} IllegalArgumentException 발생`() {
+    fun `{given} 총 구매 금액이 0원일 경우 {when} calculateProfitRate()  {then} IllegalArgumentException 발생`() {
         assertThrows<IllegalArgumentException> {
             LottoCalculator.calculateProfitRate(
                 totalProfit = BigDecimal(10000),
@@ -56,4 +56,13 @@ class LottoCalculatorTest {
             )
         }
     }
+
+    @Test
+    fun `{given} 총 수익이 0인 경우 {when} calculateProfitRate() {then} BigDecimal ZERO 반환`() {
+        val profitRate = LottoCalculator.calculateProfitRate(
+            totalProfit = BigDecimal.ZERO,
+            totalPurchaseAmount = BigDecimal(10000),
+        )
+        assertEquals(BigDecimal.ZERO, profitRate)
+    }
 }
diff --git a/src/test/kotlin/lotto/domain/LottoFactoryTest.kt b/src/test/kotlin/lotto/domain/LottoFactoryTest.kt
index d39897f03..12ec177d3 100644
--- a/src/test/kotlin/lotto/domain/LottoFactoryTest.kt
+++ b/src/test/kotlin/lotto/domain/LottoFactoryTest.kt
@@ -3,8 +3,8 @@ package lotto.domain
 import io.kotest.core.spec.style.StringSpec
 import io.kotest.matchers.collections.shouldHaveSize
 import io.kotest.matchers.shouldBe
-import lotto.domain.model.LottoNumber
 import lotto.util.NumberGenerator
+import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Assertions.assertThrows
 
 class LottoFactoryTest : StringSpec({
@@ -15,7 +15,8 @@ class LottoFactoryTest : StringSpec({
         val fakeNumberGenerator = FakeRandomNumberGenerator(expectedLottoNumbers)
         val lottoFactory =
             LottoFactory(
-                totalLottoCount = totalLottoCount,
+                autoGeneratedLottoCount = totalLottoCount,
+                manualLottoList = emptyList(),
                 numberGenerator = fakeNumberGenerator,
             )
 
@@ -35,7 +36,8 @@ class LottoFactoryTest : StringSpec({
         val fakeNumberGenerator = FakeRandomNumberGenerator(expectedLottoNumbers)
         val lottoFactory =
             LottoFactory(
-                totalLottoCount = 5,
+                autoGeneratedLottoCount = 5,
+                manualLottoList = emptyList(),
                 numberGenerator = fakeNumberGenerator,
             )
 
@@ -49,7 +51,7 @@ class LottoFactoryTest : StringSpec({
     "{given} 정수 리스트, size=6, {when} LottoFactory.fromList() {then} Lotto 생성" {
         val list = listOf(1, 2, 3, 4, 5, 6)
         val result = LottoFactory.fromList(list)
-        // assertTrue(result is Lotto) FIXME : this check is useless ?
+        assertThat(result.value).containsExactlyElementsOf(list.map { LottoNumber(it) })
     }
 
     "{given} 정수 리스트, size=10, {when} LottoFactory.fromList() {then} IllegalArgumentException 발생" {
diff --git a/src/test/kotlin/lotto/domain/model/LottoNumberTest.kt b/src/test/kotlin/lotto/domain/LottoNumberTest.kt
similarity index 94%
rename from src/test/kotlin/lotto/domain/model/LottoNumberTest.kt
rename to src/test/kotlin/lotto/domain/LottoNumberTest.kt
index c4a526bc5..2ce10d9bd 100644
--- a/src/test/kotlin/lotto/domain/model/LottoNumberTest.kt
+++ b/src/test/kotlin/lotto/domain/LottoNumberTest.kt
@@ -1,4 +1,4 @@
-package lotto.domain.model
+package lotto.domain
 
 import org.junit.jupiter.api.Assertions.assertThrows
 import org.junit.jupiter.api.Test
diff --git a/src/test/kotlin/lotto/domain/LottoResultTest.kt b/src/test/kotlin/lotto/domain/LottoResultTest.kt
index d3213833f..e04fed6eb 100644
--- a/src/test/kotlin/lotto/domain/LottoResultTest.kt
+++ b/src/test/kotlin/lotto/domain/LottoResultTest.kt
@@ -1,10 +1,8 @@
 package lotto.domain
 
 import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.collections.shouldContainOnly
 import io.kotest.matchers.shouldBe
-import lotto.domain.model.Lotto
-import lotto.domain.model.LottoNumber
-import lotto.domain.model.Rank
 
 class LottoResultTest : StringSpec({
     "로또 등수와 결과 카운트 검증" {
@@ -22,6 +20,20 @@ class LottoResultTest : StringSpec({
         results[Rank.FIFTH] shouldBe 1
     }
 
+    "일치하는 로또 번호가 없다면 resultMap 의 값들은 0 이다" {
+        // Given
+        val lottoResultNoMatch = LottoResult(
+            winningLotto = Lotto(listOf(1, 2, 3, 4, 5, 6).map { LottoNumber(it) }),
+            bonusLottoNumber = LottoNumber(7),
+            myLottos = listOf(
+                Lotto(listOf(8, 9, 10, 11, 12, 13).map { LottoNumber(it) })
+            )
+        )
+        //when & then
+        val results = lottoResultNoMatch.resultMap
+        results.values.shouldContainOnly(0)
+    }
+
     "getTotalProfit() 결과 검증" {
         // given
         val lottoResult = fakeLottoResult()
@@ -54,7 +66,7 @@ private fun fakeLottoResult(): LottoResult {
         LottoResult(
             winningLotto = winningLotto,
             bonusLottoNumber = LottoNumber(800),
-            myLottoList = myLottoList,
+            myLottos = myLottoList,
         )
     return lottoResult
 }
diff --git a/src/test/kotlin/lotto/domain/LottoTest.kt b/src/test/kotlin/lotto/domain/LottoTest.kt
new file mode 100644
index 000000000..4edc1a198
--- /dev/null
+++ b/src/test/kotlin/lotto/domain/LottoTest.kt
@@ -0,0 +1,66 @@
+package lotto.domain
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.MethodSource
+
+class LottoTest {
+    @Test
+    fun `{given} 로또 초기화 {when} LottoNumber 7개 일떄 {then} IllegalArgumentException 발생`() {
+        assertThrows<IllegalArgumentException> {
+            Lotto(listOf(1, 2, 3, 4, 5, 6, 7).map { LottoNumber(it) })
+        }
+        assertDoesNotThrow {
+            Lotto(listOf(1, 2, 3, 4, 5, 6).map { LottoNumber(it) })
+        }
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideDataForCountMatchesOf")
+    fun `{given} Lotto {when} countMatchesOf(Lotto) {then} 일치하는 로또 개수 반환`(
+        lotto1: List<Int>,
+        lotto2: List<Int>,
+        expectedMatches: Int
+    ) {
+        val lotto = Lotto(lotto1.map { LottoNumber(it) })
+        val otherLotto = Lotto(lotto2.map { LottoNumber(it) })
+        val result = lotto.countMatchesOf(otherLotto)
+        assertThat(result).isEqualTo(expectedMatches)
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideDataForContainsAny")
+    fun `{given} Lotto {when} containsAny(LottoNumber) {then} 일치하는 로또 번호가 있다면 true 아니라면 false 반환`(
+        lottoNumbers: List<Int>,
+        numberToCheck: Int,
+        expectedResult: Boolean
+    ) {
+        val lotto = Lotto(lottoNumbers.map { LottoNumber(it) })
+        val result = lotto.containsAny(LottoNumber(numberToCheck))
+        assertThat(result).isEqualTo(expectedResult)
+    }
+
+    companion object {
+        @JvmStatic
+        fun provideDataForCountMatchesOf(): List<Arguments> {
+            return listOf(
+                Arguments.of(listOf(1, 2, 3, 4, 5, 6), listOf(1, 2, 3, 7, 8, 9), 3),
+                Arguments.of(listOf(1, 2, 3, 4, 5, 6), listOf(10, 11, 12, 13, 14, 15), 0),
+                Arguments.of(listOf(1, 2, 3, 4, 5, 6), listOf(1, 2, 3, 4, 5, 6), 6)
+            )
+        }
+
+        @JvmStatic
+        fun provideDataForContainsAny(): List<Arguments> {
+            return listOf(
+                Arguments.of(listOf(1, 2, 3, 4, 5, 6), 3, true),
+                Arguments.of(listOf(1, 2, 3, 4, 5, 6), 7, false),
+                Arguments.of(listOf(10, 11, 12, 13, 14, 15), 10, true)
+            )
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/test/kotlin/lotto/domain/model/RankTest.kt b/src/test/kotlin/lotto/domain/RankTest.kt
similarity index 96%
rename from src/test/kotlin/lotto/domain/model/RankTest.kt
rename to src/test/kotlin/lotto/domain/RankTest.kt
index dd5db941d..8d15ba655 100644
--- a/src/test/kotlin/lotto/domain/model/RankTest.kt
+++ b/src/test/kotlin/lotto/domain/RankTest.kt
@@ -1,4 +1,4 @@
-package lotto.domain.model
+package lotto.domain
 
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Test