Oldman, a mysterious man who wears an old-man mask and punishes the criminals and evils in the city, is the idol of many, including an elementary student named Tong. Even though Tong's father is a policeman, he feels embarrassed and ashamed of his father's inability to solve any crimes. However, on the day of Tong's 12th birthday, something shocking happens!
| Published | 2014 |
| Serialization | U17 |
| Last Updated | May 30, 2017 |
| Languages | English, Japanese |
| Other names | 英雄 |
