Guy is a ex trouble maker his dad die a couple years ago and his family are mom and twin sisters. His mom want to remarried with good prosperied man who have a son. Son is awfuly bad on his dad he want to replace his mom. He is gay and the only person he told that was his mum. On influence of alcohol they have sex together and after that they talk a lot, mom son is fighting and they decided to take his relationship on secret
Gitei ni Himitsu ga Arimashite