diff --git a/LanguageServer/src/main/resources/models/accounts.model b/LanguageServer/src/main/resources/models/accounts.model
new file mode 100644
index 0000000..16a2cf7
--- /dev/null
+++ b/LanguageServer/src/main/resources/models/accounts.model
@@ -0,0 +1,12 @@
+/*
+ * Hello World!
+ * これはコメントです。
+ */
+channel Signup {
+    out accounts(accounts: List, signup(name: Str)) = append(accounts, {"name": name})
+}
+
+// This is a single-line comment
+channel ChangeName(uid: Int) { // Describe // this line is contained by former comment.
+    out accounts.{uid}.name(n: Str, changeName(name)) = name
+}
\ No newline at end of file