Smasher:MairudonaH.O

MairudonaH.O or alternatively MairudunaH.O (マイルドなH.O) is a Super Smash Bros. Ultimate player residing in Kantō, Japan. Their breakout performance offline was at the Supermajor where they placed 33rd after taking sets over, , and. They placed 33rd again at DELTA 7 [FAT] after taking sets over  and. They have also taken sets over players like, , and.

MairudonaH.O regularly competes on Smashmate. They were ranked 47th on the 23rd season with a rating of 2200.