Super Seisyun Brothers summary: You are reading Super Seisyun Brothers manga, one of the most popular manga covering in Comedy, Shoujo, Slice of life genres, written by Shin Shinmoto at MangaBuddy, a top manga site to offering for free. Super Seisyun Brothers has 52 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Super Seisyun Brothers to your bookmark. Older sisters are best friends, younger siblings are best friends. Among these like brothers there is a strange relationship.