| Tsutomu Andō | ||
|---|---|---|
| 安藤 勉 Andō Tsutomu | ||
| Gender | Male | |
| School | Kaimei High School | |
| Class | 2-C (chapters 1-209) 3-? (chapters 210-present) | |
Tsutomu Andō (安藤 勉, Andō Tsutomu) is a student who was in the same Class 2-C as the members of the Sket Dan. When Chū-san gave out incorrect third year classroom assignments, Tsutomu's was 3-E.