diff --git a/.github/ISSUE_TEMPLATE/ASSIGNMENT.md b/.github/ISSUE_TEMPLATE/ASSIGNMENT.md
new file mode 100644
index 0000000..34b0ca4
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/ASSIGNMENT.md
@@ -0,0 +1,20 @@
+---
+name: Homework
+about: Create a homework
+title: "[Assignment TODO] TODO (due: TODO)"
+labels: assignment
+assignees: ''
+
+---
+
+DESCRIPTION.
+
+- Read the description [here](https://github.com/kaist-cp/cs220/blob/main/src/assignments/assignmentX.rs). You're going to fill out the `todo!()`s.
+
+- You can grade your solution yourself by running `./scripts/grade-X.sh`.
+
+- Submit your code [here](https://gg.kaist.ac.kr/assignment/GGX/).
+
+- **IMPORTANT**: only the last submission counts. Please make sure the last submission succeeds.
+
+- **IMPORTANT**: don't fork this repository. It'll be public!
diff --git a/.github/ISSUE_TEMPLATE/assignment_question.yml b/.github/ISSUE_TEMPLATE/assignment_question.yml
index 1b2e5d9..f648582 100644
--- a/.github/ISSUE_TEMPLATE/assignment_question.yml
+++ b/.github/ISSUE_TEMPLATE/assignment_question.yml
@@ -4,9 +4,9 @@ title: '[Assignment #] (SUMMARIZE YOUR QUESTION AS CLEARLY AS POSSIBLE)'
 labels:
   - question
 assignees:
-  - woojinnn
-  - jirheee
-  - AnHaechan
+  - Lee-Janggun
+  - kingdoctor
+  - Jaewookim08
 body:
   - type: markdown
     attributes:
diff --git a/src/assignments/assignment07/generator.rs b/src/assignments/assignment07/generator.rs
index 57f8172..e92f123 100644
--- a/src/assignments/assignment07/generator.rs
+++ b/src/assignments/assignment07/generator.rs
@@ -14,7 +14,7 @@ enum Yielded<T> {
 ///
 /// Reference:
 /// - [Python generator](https://python-reference.readthedocs.io/en/latest/docs/generator/)
-#[allow(missing_debug_implementations)]
+#[derive(Debug)]
 pub struct Generator<T, S> {
     state: S,
     f: fn(&mut S) -> Yielded<T>,