|Mizushima Hisoka水島 密 AB|
|Hair||, Black, Long|
|Body||, Average Height|
|Visual novels||Side character - Tokimeki Memorial Girl's Side: 2nd Kiss|
|Voiced by||Minaguchi Yuuko|
Hisoka is very feminine and ladylike. She also a way to manipulate people to do things for her without them realizing it. She is in love with Christopher and if the player is also going for his ending she can become a rival in love for his affections.