- The characters are similar;
- They are both about fights;
- Delinquent, high school, bromance / friendship, action, youth, gang, school bullying, etc.
Both are stories about young high school Yakuza/Gang members, both have some of Japans favourite male actors in a leading role (Oguri Shun & Matsuda Shota), and both are packed with themes such as friendship, action and subtle humor.