Buzzer Beater
Complete | inoue takehiko | 1997 released
Boukyaku Battery
Ongoing | Mikawa Eko | 2018 released
At ch 180 - 15.10.2025 Reading official at: https://xbato.com/title/189061-oblivion-battery-official Unofficial TL has better Japanese vocabulary in it, but the official slightly better format and structure. Has anime adaptation. Also...a bit frustrating everyone in the manga and comments suggests Kei has DID (previously Multiple Personalities Disorder), when it's simply not possible - at least not based on what we have been told happened. You can't just develop DID in your teenage years. Perhaps he has OSDD...even schizophrenia is more likely. I personally think, based on his headaches, fatigue, and nosebleeds...that he might have a tumor.
Diamond No Kouzai