Character information
Rōmaji Oka
Kanji おか
Gender Female
Age Unknown
Chapter 37th Down
Episode Episode 9
Voice actors
Japanese Mayumi Akado
Image gallery

Oka is the head nurse at a local hospital. She has a ghastly appearance and she is obsessed with the occult. She constantly talks of curses and ghosts of deceased patients, which unnerves people. Her son plays for the Noroi Occults in the Fall Tokyo Tournament.


  • Oka is also seen in 247th Down as one of the people whom Hiruma invited to play baseball with the team.

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