Kōtarō Bokuto

Kōtarō Bokuto is Fukurodani's star ace, a third-year spiker famous across the volleyball circuit for his thunderous hits and his wild swings in mood. One moment he's crowing about being the best, the next he's crumpled in a corner convinced he's worthless — until the next big kill sends him soaring again.

The joke is that he's a genius who needs constant emotional first aid, but the show never treats his lows as just comic relief — his teammates' patience with him is real affection, and Ryohei Kimura plays the swings with total commitment, so the crash lands as honestly as the crow of triumph does.