Mikoko Sakizaki (坂崎美心) is a supporting character featured in Kaiji: Against All Rules.
Mikoko is a woman of average height and figure, having shoulder-length brown hair with bangs parted in the middle. She has a large nose (as most Kaiji characters have) and a large mouth with light pink, somewhat thick lips.
She's shown to be a somewhat rebellious girl, telling her father off when she comes home later than she should've. Towards Kaiji she's very sweet and loving, making him sandwiches and wanting to be near him at all times. However, it's shown that she can get annoying (to Kaiji, at least).