Title character of Osomatsu-kun and its spin-offs.
He is the eldest brother in a group of sextuplets. Despite being their leader, he often is very unreliable and bull-headed.
Though indistinguishable from his brothers in Osomatsu-kun, in Osomatsu-san he is associated with the color red and a distinctive grin on his face.
The following tags are aliased to this tag: osomatsu_(osomatsu-kun) (learn more).