Yamaguchi lost a lot at pachinko today, just like every other day. To relieve stress, he splurged and called a delivery health service specializing in married women. The delivery health girl who came to his house was a super hit with three or four things: beautiful, excellent service, and charm! However... the delivery health girl's true identity was Yamaguchi's former homeroom teacher who abandoned him when he was a delinquent. (My life has become a mess because of her!) It's been a hundred years since they last met... To release the resentment he has been building up, he plans revenge sex.