diff --git a/docs/v2/.vitepress/catalogue.ts b/docs/v2/.vitepress/catalogue.ts
index 8c3ef4307..8b7e6b81e 100644
--- a/docs/v2/.vitepress/catalogue.ts
+++ b/docs/v2/.vitepress/catalogue.ts
@@ -5,6 +5,35 @@ export const coreSidebar = {
 		{
 			text: "Lagrange.Core",
 			link: "/Lagrange.Core/",
+		},
+		{
+			text: "Internal",
+			items: [
+				{
+					text: "Context",
+					link: "/Lagrange.Core/Internal/Context",
+				},
+				{
+					text: "Events",
+					link: "/Lagrange.Core/Internal/Events",
+				},
+				{
+					text: "Logic",
+					link: "/Lagrange.Core/Internal/Logic",
+				},
+				{
+					text: "Network",
+					link: "/Lagrange.Core/Internal/Network",
+				},
+				{
+					text: "Packets",
+					link: "/Lagrange.Core/Internal/Packets",
+				},
+				{
+					text: "Services",
+					link: "/Lagrange.Core/Internal/Services",
+				}
+			]
 		}
 	],
 }
diff --git a/docs/v2/Lagrange.Core/Internal/Context.md b/docs/v2/Lagrange.Core/Internal/Context.md
new file mode 100644
index 000000000..fc3a3f83d
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Context.md
@@ -0,0 +1,2 @@
+# Context
+这里定义了多种用途的Context，所谓Context，即是需要长期持有的状态。
\ No newline at end of file
diff --git a/docs/v2/Lagrange.Core/Internal/Events.md b/docs/v2/Lagrange.Core/Internal/Events.md
new file mode 100644
index 000000000..1feeffa50
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Events.md
@@ -0,0 +1,4 @@
+# Protocol Events
+`Lagrange.Core` 是一个事件驱动的系统。在上层，每一种API调用操作本质上都是组装一个事件，然后在系统的Logic, Service, Context中层层转发，最终变成通过Socket发送出去的字节流；而收到的回复或者推送也是同样地层层上递，最终解析为`Protocol Event`处理的。
+
+在这里按照语义定义了多种`Protocol Event`，分为登录事件、系统事件和消息事件。
\ No newline at end of file
diff --git a/docs/v2/Lagrange.Core/Internal/Logic.md b/docs/v2/Lagrange.Core/Internal/Logic.md
new file mode 100644
index 000000000..a40eb6c27
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Logic.md
@@ -0,0 +1,2 @@
+# Logic
+这里定义的`Logic`主要负责将订阅的`protocol event`进行处理，调用`Context`或者递出事件。
\ No newline at end of file
diff --git a/docs/v2/Lagrange.Core/Internal/Network.md b/docs/v2/Lagrange.Core/Internal/Network.md
new file mode 100644
index 000000000..61dcd7457
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Network.md
@@ -0,0 +1,2 @@
+# Network
+这里定义了一些网络相关的工具类和函数。
\ No newline at end of file
diff --git a/docs/v2/Lagrange.Core/Internal/Packets.md b/docs/v2/Lagrange.Core/Internal/Packets.md
new file mode 100644
index 000000000..f8f483103
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Packets.md
@@ -0,0 +1,4 @@
+# Packets
+`Lagrange.Core`将事件层层封装为Packet然后发送。首先，是`protobuf`包，然后，将会被封装为`SSO Packet`, 最终会被封装为不同版本(12/13)的`UniPacket`封装。
+
+在协议上可以参考腾讯的[Tars](https://tarscloud.github.io/TarsDocs/base/tars-tup.html)。其为`TRPC`的早期开源版本，暴露了更多细节。
\ No newline at end of file
diff --git a/docs/v2/Lagrange.Core/Internal/Services.md b/docs/v2/Lagrange.Core/Internal/Services.md
new file mode 100644
index 000000000..823fde743
--- /dev/null
+++ b/docs/v2/Lagrange.Core/Internal/Services.md
@@ -0,0 +1,2 @@
+# Service
+`Service`是RPC中对于远端服务的抽象，相当于`grpc`中的`service`。
\ No newline at end of file