diff --git a/core/model/src/main/java/com/susu/core/model/Term.kt b/core/model/src/main/java/com/susu/core/model/Term.kt
index fee956dd..145c01ce 100644
--- a/core/model/src/main/java/com/susu/core/model/Term.kt
+++ b/core/model/src/main/java/com/susu/core/model/Term.kt
@@ -4,4 +4,5 @@ data class Term(
     val id: Int,
     val title: String,
     val isEssential: Boolean,
+    val canRead: Boolean = true,
 )
diff --git a/data/src/main/java/com/susu/data/remote/model/response/TermResponse.kt b/data/src/main/java/com/susu/data/remote/model/response/TermResponse.kt
index dea1c6e1..d8b7b041 100644
--- a/data/src/main/java/com/susu/data/remote/model/response/TermResponse.kt
+++ b/data/src/main/java/com/susu/data/remote/model/response/TermResponse.kt
@@ -9,6 +9,7 @@ data class TermResponse(
     val id: Int,
     val title: String,
     val isEssential: Boolean,
+    val isIncludeDetail: Boolean = true,
 )
 
 @Serializable
@@ -23,6 +24,7 @@ fun TermResponse.toModel(): Term = Term(
     id = id,
     title = title,
     isEssential = isEssential,
+    canRead = isIncludeDetail,
 )
 
 fun TermDetailResponse.toModel(): TermDetail = TermDetail(
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpContract.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpContract.kt
index 82ca6c9d..10e4a169 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpContract.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpContract.kt
@@ -5,6 +5,8 @@ import com.susu.core.ui.Gender
 import com.susu.core.ui.base.SideEffect
 import com.susu.core.ui.base.UiState
 import com.susu.feature.loginsignup.R
+import kotlinx.collections.immutable.PersistentSet
+import kotlinx.collections.immutable.persistentSetOf
 
 sealed interface SignUpEffect : SideEffect {
     data object NavigateToLogin : SignUpEffect
@@ -16,7 +18,7 @@ sealed interface SignUpEffect : SideEffect {
 data class SignUpState(
     val isLoading: Boolean = false,
     val currentStep: SignUpStep = SignUpStep.TERMS,
-    val agreedTerms: List<Int> = emptyList(),
+    val agreedTerms: PersistentSet<Int> = persistentSetOf(),
     val name: String = "",
     val isNameValid: Boolean = true,
     val gender: Gender = Gender.NONE,
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpScreen.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpScreen.kt
index dffc9972..a5e8c7cb 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpScreen.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpScreen.kt
@@ -18,6 +18,7 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -44,6 +45,7 @@ import com.susu.feature.loginsignup.R
 import com.susu.feature.loginsignup.signup.content.AdditionalContent
 import com.susu.feature.loginsignup.signup.content.NameContent
 import com.susu.feature.loginsignup.signup.content.TermsContent
+import kotlinx.collections.immutable.toPersistentList
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -76,7 +78,15 @@ fun SignUpRoute(
         }
     }
 
-    Box(modifier = Modifier.fillMaxSize().padding(padding)) {
+    LaunchedEffect(key1 = Unit) {
+        termViewModel.getTermList()
+    }
+
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding),
+    ) {
         SignUpScreen(
             uiState = uiState,
             termState = termState,
@@ -119,7 +129,7 @@ fun SignUpRoute(
                             modifier = Modifier.fillMaxSize(),
                             descriptionText = targetState.description?.let { stringResource(id = it) } ?: "",
                             terms = termState.terms,
-                            agreedTerms = uiState.agreedTerms,
+                            agreedTerms = uiState.agreedTerms.toPersistentList(),
                             onDetailClick = {
                                 termViewModel.updateCurrentTerm(it)
                                 viewModel.goTermDetail()
@@ -241,7 +251,9 @@ fun SignUpScreen(
         }
         content()
         SusuFilledButton(
-            modifier = Modifier.fillMaxWidth().imePadding(),
+            modifier = Modifier
+                .fillMaxWidth()
+                .imePadding(),
             shape = RectangleShape,
             color = FilledButtonColor.Black,
             style = MediumButtonStyle.height60,
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpViewModel.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpViewModel.kt
index 41a060b6..dddbe448 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpViewModel.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/SignUpViewModel.kt
@@ -12,6 +12,8 @@ import com.susu.core.ui.base.BaseViewModel
 import com.susu.domain.usecase.loginsignup.SignUpUseCase
 import com.susu.feature.loginsignup.social.KakaoLoginHelper
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.collections.immutable.persistentSetOf
+import kotlinx.collections.immutable.toPersistentSet
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -43,19 +45,19 @@ class SignUpViewModel @Inject constructor(
     }
 
     fun agreeTerm(termId: Int) {
-        intent { copy(agreedTerms = agreedTerms + termId) }
+        intent { copy(agreedTerms = agreedTerms.add(termId)) }
     }
 
     fun disagreeTerm(termId: Int) {
-        intent { copy(agreedTerms = agreedTerms - termId) }
+        intent { copy(agreedTerms = agreedTerms.remove(termId)) }
     }
 
     fun agreeAllTerms(entireTermIds: List<Int>) {
-        intent { copy(agreedTerms = entireTermIds) }
+        intent { copy(agreedTerms = entireTermIds.toPersistentSet()) }
     }
 
     fun disagreeAllTerms() {
-        intent { copy(agreedTerms = emptyList()) }
+        intent { copy(agreedTerms = persistentSetOf()) }
     }
 
     fun goNextStep() {
@@ -96,7 +98,7 @@ class SignUpViewModel @Inject constructor(
                             } else {
                                 null
                             },
-                            termAgreement = uiState.value.agreedTerms,
+                            termAgreement = uiState.value.agreedTerms.toList(),
                         ),
                     ).onSuccess {
                         postSideEffect(SignUpEffect.NavigateToReceived)
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermContract.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermContract.kt
index c832749b..a393e892 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermContract.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermContract.kt
@@ -4,6 +4,8 @@ import com.susu.core.model.Term
 import com.susu.core.model.TermDetail
 import com.susu.core.ui.base.SideEffect
 import com.susu.core.ui.base.UiState
+import kotlinx.collections.immutable.PersistentList
+import kotlinx.collections.immutable.persistentListOf
 
 sealed interface TermEffect : SideEffect {
     data class ShowToast(val msg: String) : TermEffect
@@ -11,6 +13,6 @@ sealed interface TermEffect : SideEffect {
 
 data class TermState(
     val isLoading: Boolean = false,
-    val terms: List<Term> = emptyList(),
+    val terms: PersistentList<Term> = persistentListOf(),
     val currentTerm: TermDetail = TermDetail(0, "", false, ""),
 ) : UiState
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermViewModel.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermViewModel.kt
index 01d3933e..1aa81e39 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermViewModel.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/TermViewModel.kt
@@ -5,6 +5,7 @@ import com.susu.core.ui.base.BaseViewModel
 import com.susu.domain.usecase.loginsignup.GetTermDetailUseCase
 import com.susu.domain.usecase.loginsignup.GetTermsUseCase
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.collections.immutable.toPersistentList
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -14,11 +15,11 @@ class TermViewModel @Inject constructor(
     private val getTermDetailUseCase: GetTermDetailUseCase,
 ) : BaseViewModel<TermState, TermEffect>(TermState()) {
 
-    init {
+    fun getTermList() {
         viewModelScope.launch {
             intent { copy(isLoading = true) }
             getTermsUseCase().onSuccess {
-                intent { copy(terms = it, isLoading = false) }
+                intent { copy(terms = it.toPersistentList(), isLoading = false) }
             }.onFailure {
                 postSideEffect(TermEffect.ShowToast(it.message ?: "약관을 불러오지 못했어요"))
             }
diff --git a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/content/TermsContent.kt b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/content/TermsContent.kt
index 0fc20875..cabf25bd 100644
--- a/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/content/TermsContent.kt
+++ b/feature/loginsignup/src/main/java/com/susu/feature/loginsignup/signup/content/TermsContent.kt
@@ -62,6 +62,7 @@ fun TermsContent(
                 title = term.title,
                 checked = agreedTerms.contains(term.id),
                 isEssential = term.isEssential,
+                canRead = term.canRead,
                 onDetailClick = { onDetailClick(term.id) },
                 onCheckClick = {
                     onTermChecked(it, term.id)
@@ -79,11 +80,13 @@ fun TermListItem(
     isEssential: Boolean = true,
     canRead: Boolean = true,
     onCheckClick: (Boolean) -> Unit = {},
-    onDetailClick: (() -> Unit)? = null,
+    onDetailClick: (() -> Unit) = {},
 ) {
     Row(
-        modifier = if (onDetailClick != null) {
-            modifier.susuClickable(onClick = onDetailClick).padding(vertical = SusuTheme.spacing.spacing_m)
+        modifier = if (canRead) {
+            modifier
+                .susuClickable(onClick = onDetailClick)
+                .padding(vertical = SusuTheme.spacing.spacing_m)
         } else {
             modifier.padding(vertical = SusuTheme.spacing.spacing_m)
         },
@@ -122,7 +125,11 @@ fun TermsContentPreview() {
         TermsContent(
             modifier = Modifier.fillMaxSize(),
             descriptionText = "어쩌구저쩌구\n뭐를해주세요",
-            terms = listOf(Term(1, "노예 계약", true), Term(2, "농노 계약", true)),
+            terms = listOf(
+                Term(0, "14세 이상?", true, false),
+                Term(1, "노예 계약", true),
+                Term(2, "농노 계약", true),
+            ),
         )
     }
 }
diff --git a/feature/loginsignup/src/main/res/values/strings.xml b/feature/loginsignup/src/main/res/values/strings.xml
index 1ab2aef1..4c07a409 100644
--- a/feature/loginsignup/src/main/res/values/strings.xml
+++ b/feature/loginsignup/src/main/res/values/strings.xml
@@ -33,4 +33,5 @@
     <string name="login_snackbar_unknown_error">알 수 없는 에러가 발생했어요</string>
     <string name="login_snackbar_kakao_server_error">카카오톡 서버에서 에러가 발생했어요</string>
     <string name="signup_snackbar_kakao_login_error">카카오톡 로그인 에러가 발생했어요</string>
+    <string name="signup_term_over_14">만 14세 이상입니다.</string>
 </resources>
diff --git a/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt b/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
index a02099ed..7b3d59cc 100644
--- a/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
+++ b/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
@@ -10,6 +10,8 @@ import com.susu.domain.usecase.friend.SearchFriendUseCase
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.toPersistentList
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -52,35 +54,38 @@ class SentEnvelopeSearchViewModel @Inject constructor(
     }
 
     fun getEnvelopeList(search: String) = viewModelScope.launch {
+        if (search.isEmpty()) return@launch
+
         val searchedFriends = searchFriendUseCase(search).getOrThrow()
 
         // 친구 검색 결과가 존재하면 봉투 검색
-        val envelopesByFriend = if (searchedFriends.isNotEmpty()) {
-            searchSentEnvelopeListUseCase(
-                param = SearchSentEnvelopeListUseCase.Param(
-                    friendIds = searchedFriends.map { it.friend.id.toInt() },
-                ),
-            )
-        } else {
-            Result.success(emptyList())
+        val envelopesByFriend = async {
+            if (searchedFriends.isNotEmpty()) {
+                searchSentEnvelopeListUseCase(
+                    param = SearchSentEnvelopeListUseCase.Param(
+                        friendIds = searchedFriends.map { it.friend.id.toInt() },
+                    ),
+                ).getOrDefault(emptyList())
+            } else {
+                emptyList()
+            }
         }
 
         // 숫자 형식일 경우는 금액으로 봉투 검색
-        val envelopesByAmount = search.toLongOrNull()?.let { amount ->
-            searchSentEnvelopeListUseCase(
-                param = SearchSentEnvelopeListUseCase.Param(
-                    fromAmount = amount,
-                    toAmount = amount,
-                ),
-            )
-        } ?: Result.success(emptyList())
+        val envelopesByAmount = async {
+            search.toLongOrNull()?.let { amount ->
+                searchSentEnvelopeListUseCase(
+                    param = SearchSentEnvelopeListUseCase.Param(
+                        fromAmount = amount,
+                        toAmount = amount,
+                    ),
+                ).getOrDefault(emptyList())
+            } ?: emptyList()
+        }
 
         // 두가지 조건을 검색 완료 시 결과를 통합 표시
-        if (envelopesByFriend.isSuccess && envelopesByAmount.isSuccess) {
-            val searchedEnvelopes =
-                envelopesByFriend.getOrDefault(emptyList()) + envelopesByAmount.getOrDefault(emptyList())
-            intent { copy(envelopeList = searchedEnvelopes.toPersistentList()) }
-        }
+        val result = awaitAll(envelopesByFriend, envelopesByAmount).flatten()
+        intent { copy(envelopeList = result.toPersistentList()) }
     }
 
     private fun updateRecentSearchList(searchList: List<String>) {