Miu Shiramine strikes a deal with a Yakuza boss, offering herself as collateral for 10 days in order to save her brother IPX-826.
She probably didn’t think about the situation well, as she was not supposed to win in any case. Sure enough, Nakata the Yakuza spends the 10 days straight giving her creampie. By the end, her brain was so toasted that she doesn’t care about her brother anymore and she just wants to stay for more. Miu is incredibly pretty, I highly recommend all her catalog.