Age: 26 Birthday: March 7 Height: 181cm (5'11'') Aoba's friend who runs the gang Dry Juice. He's tried to recruit Aoba but always failed. He's also a tattoo artist and owner of a tattoo parlor/bar named Black Needle. In the anime Mizuki has an unnamed allmate which appears to be a stoat in its winter coat, so it is referred to as an ermine The name Mizuki can translate to either "beautiful" and "moon", or "congratulations" and "hope."