is a trouble-making boy who had believed Muhyo and Roji's business was a fake and destroyed their sign. He did not believe in ghosts until the pair saved him from a blood-drinking ghost he had accidentally freed. Afterwards, Kenji grew a liking for the pair, often referring to Roji as "Sprout-Man" and Muhyo as "Onion-Boy". He always tries to find excuses to hang around their office, as Muhyo has made it a rule never to meet a client after the case is complete unless they bring a new one. ( Birthday: December 7- Sagittarius).

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