Futoshi Mizuki, nicknamed Big, is the fourth member of the team introduced, after Emi and before Monkey. He is described as a kindhearted boy who can become unstoppable when he's angry. Big, despite being only in the 6th grade, has demonstrated nigh-superhuman feats of strength, including bending prison bars and holding up a collapsing roof. His parents own a flower shop.

The HKsubs make Big say weird things.
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