The lucky guy when Jinguji invited home to sleep overnight. After a party, this guy lost the last train home, and one of her colleagues, Nao Jinguji, invited him to stay her place. At first he didn't think much about that, especially because he had a girlfriend. But implying sex and teasing began to increase rapidly and he eventually suffered temptation. And then the two made love from night to luxury and this relationship will continue to be maintained or not.