Numachi Rōka

A basketball player who was Suruga's middle school rival. Appears in "Suruga Devil" and "Numachi God." Also mentioned by name in "Shinobu Time" and "Hitagi End."

Dressed in a tracksuit and using crutches, she stands out in the rural town with her unusually slow speech and unkempt, bushy light brown hair. Known by various nicknames such as "Devil-sama" and "Numa-god," she runs a consultation business across various locations. She has met several times with someone who originally had her job, as she managed to completely neutralize the preparations made by the "Mud Boat," and was entrusted with a client who would meet the devil and the future.

In middle school, she was known for her mire-like defense, which was almost a form of harassment to her opponents, earning her the nicknames "Poisonous Swamp" and "Unjumpable Swamp." She competed fiercely in the same district as Suruga, but during a match, she destroyed her left leg, ending her career as a player. Currently, she doesn't attend high school and works part-time, but due to her leg injury, she can't even get hired for part-time work, effectively making her unemployed.

In fact, after transferring schools due to her career-ending injury, she committed suicide, and the character appearing in the story is a ghost.