Reiichiro Shiba

Shiba is Chika's friend from middle school. While he was with Chika he was entertained, but after they started attending different high schools he became so bored he committed suicide by jumping off a building.

He was 'revived' as a zombie by Carmella after being selected by the Wheel of Fate organization for an experiment. Shiba then became the serial killer known as "Butterfly" a name he takes from the tattoo in the front of his right shoulder.

After facing the Z-Loan team, and refusing to attempt to rid himself of his zombie black ring despite Chika's efforts, Shiba once again lets himself fall off a building, but encounters Zarame before he hits the ground.

At that point, the Z-loan team thinks that Shiba was reaped by Zarame but later Zarame appears without his core. It is not been confirmed that Shiba stole the core, but he appears with a scythe in a manga picture so it's a possibility.


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