Itsuka no Main: Kaminari Shounen - Tenta Sanjou!
Japanese title: いつかのメイン 雷少年・天太参上!
Type: OVA
Episodes: 1
Source: Manga
Genres: Action, Drama
Studios: J.C.Staff
Producers: Toei Video
Duration: 45 min
Rating: R - 17+ (violence & profanity)

Based on the manga by Mizuho Shuushi, the story shows a realistic portrayal of a Japanese bike gang member trying to live up to social expectations of him being a 'legend'.