diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/Setting.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/Setting.kt
index 153d78982..923a4d890 100644
--- a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/Setting.kt
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/Setting.kt
@@ -13,6 +13,7 @@ package net.mamoe.mirai.console.setting
 
 import net.mamoe.mirai.console.setting.internal.cast
 import net.mamoe.mirai.console.setting.internal.valueFromKTypeImpl
+import net.mamoe.mirai.console.setting.internal.valueImpl
 import net.mamoe.mirai.utils.MiraiExperimentalAPI
 import kotlin.internal.LowPriorityInOverloadResolution
 import kotlin.reflect.KProperty
@@ -54,7 +55,7 @@ internal abstract class SettingImpl {
 
 // TODO: 2020/6/19 CODEGEN
 
-fun Setting.value(value: Int): IntValue = TODO("codegen")
+fun Setting.value(default: Int): IntValue = valueImpl(default)
 
 //// endregion Setting.value primitives CODEGEN ////
 
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/ValueDeclarationsImpl.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/CompositeValueImpl.kt
similarity index 87%
rename from backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/ValueDeclarationsImpl.kt
rename to backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/CompositeValueImpl.kt
index c4726e915..1b611fe9d 100644
--- a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/ValueDeclarationsImpl.kt
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/CompositeValueImpl.kt
@@ -13,25 +13,6 @@ package net.mamoe.mirai.console.setting.internal
 
 import net.mamoe.mirai.console.setting.*
 
-internal abstract class IntValueImpl : IntValue {
-    constructor()
-    constructor(default: Int) {
-        _value = default
-    }
-
-    private var _value: Int? = null
-
-    override var value: Int
-        get() = _value ?: throw IllegalStateException("IntValue should be initialized before get.")
-        set(v) {
-            if (v != this._value) {
-                this._value = v
-                onChanged()
-            }
-        }
-
-    protected abstract fun onChanged()
-}
 
 // type inference bug
 internal fun <T> Setting.createCompositeSetValueImpl(tToValue: (T) -> Value<T>): CompositeSetValueImpl<T> {
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/ValueCreatorsImpl.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/Setting.value composite impl.kt
similarity index 100%
rename from backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/ValueCreatorsImpl.kt
rename to backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/Setting.value composite impl.kt
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_PrimitiveValueDeclareations.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_PrimitiveValueDeclareations.kt
new file mode 100644
index 000000000..650200b97
--- /dev/null
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_PrimitiveValueDeclareations.kt
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.setting.internal
+
+import net.mamoe.mirai.console.setting.IntValue
+
+
+//// region PrimitiveValues CODEGEN ////
+
+// TODO: 2020/6/21 CODEGEN
+
+internal abstract class IntValueImpl : IntValue {
+    constructor()
+    constructor(default: Int) {
+        _value = default
+    }
+
+    private var _value: Int? = null
+
+    override var value: Int
+        get() = _value ?: throw IllegalStateException("IntValue should be initialized before get.")
+        set(v) {
+            if (v != this._value) {
+                this._value = v
+                onChanged()
+            }
+        }
+
+    protected abstract fun onChanged()
+}
+
+//// endregion PrimitiveValues CODEGEN ////
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_Setting.value.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_Setting.value.kt
new file mode 100644
index 000000000..76e8e5331
--- /dev/null
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/_Setting.value.kt
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.setting.internal
+
+import net.mamoe.mirai.console.setting.IntValue
+import net.mamoe.mirai.console.setting.Setting
+
+
+//// region Setting.value primitives impl CODEGEN ////
+
+// TODO: 2020/6/21 CODEGEN
+
+internal fun Setting.valueImpl(default: Int): IntValue = object : IntValueImpl(default) {
+    override fun onChanged() = this@valueImpl.onValueChanged(this)
+}
+
+//// endregion Setting.value primitives impl CODEGEN ////
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/internal.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/serializerUtil.kt
similarity index 100%
rename from backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/internal.kt
rename to backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/setting/internal/serializerUtil.kt