Koma'n (こまん, June 16, 1992) is an utaite noted for covering songs with Piano and vocals. He is also very talented at making piano arrangements, such as the ones done for Just Be Friends, Calc. or Karakuri Pierrot, which mostly are slow, sad tuned pieces. He is also active as composer with his most famous piece being "BadBye" with over 600k views.

Koma'n is also the leader and youngest of the group RootFive (√5), with Dasoku, Kettaro, Mi-chan and Pokota. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.