What is Tanpo? Basically it means security collateral. In this story, the Suzumiya family have run deep in dept that they pawn off their three daughters Yukari, Ai, and Midori as guarantees for the money they'll receive. Well, they mistake some piece of trash called Ishihara Yuujirou for the Daikoudan Group. Unfortunately, Ai-chan is the one that the rest of the family/staff coerce into tempting Yuujirou with her body to initiate sex with her in order to secure money for the debts.

Based on DS Dating Sim "Love Plus."

Yuuki-kun was one of the star players on his junior high-school soccer team; along with his childhood friend Shinichi. Due to a promise that he made with his female childhood friend Miyuki, Yuuki kun has decided to take the long road to the J League by joining a normal school club and winning tournaments, instead of taking recommendations like Shinichi did....

When he checks the club of his selected school, the best club in the country; he quickly notices that the club is completely devoid of any members except for a weird girl that goes by the name of the Fujisaki Rin. She along with her friend Ayane seem to have driven everyone out of the team....

But is it really that Rin and Ayane want to dissolve the soccer club? or could they possible want something else??.... And just what is exactly the promise that Yuuki did with his childhood friends? Well, regardless of the answers it seems that Yuuki isn't in for a smooth sailing, as he completely seems to have fallen into Fujisaki's hands...