Takeshi Furuhata

Takeshi Furuhata is a debtor and one-time coworker of Kaiji. One year before the first tournament on Espoir, he lured Kaiji into cosigning a loan for him, making Kaiji liable in case Furuhata did not repay the loan. Although believed to have disappeared, Kaiji discovers him on Espoir and makes an alliance with him after Funai's betrayal.

(Source: Wikipedia)