The oldest and leader of the sextuplets, as well as the best fighter in the group. In the 1993 one-shot story Osomatsu-kun Grows Up, he has become a typical salaryman and is unmarried. His name comes from osomatsu (お粗末), which means lame or ill-prepared in Japanese.
The Animate Cafe Ikebukuro No. 3 was newly opened on Jan. 27 and as its first collaboration, the cafe is decked out with all kinds of content themed after the popular anime Osomatsu-san.