Тому Сирасаги

The main protagonist of the serie. Tomu is a 14-year-old boy who come to Shishidou Academy with the primary purpose of "crushing the school", claiming that it gonna be the fourth one. He's a great and extreme gambler, to the point of betting his own finger in a match. So far, he defeated all of his opponents by using various tricks and tactics, where all of his gambling skills are showed. (Sourse: Wikipedia)