Apprentice Succubus is forced to take an exam to have a certain man ejaculate 10 times in order to be promoted to an official succubus...And then there was a young man with an ejaculation disorder chosen as his partner.Despite being a highly difficult exam, he manages to make it a success with his amazing techniques and the tough guy that is unique to succubus, and a young man who improves his ejaculation disorder through his play...However... if you suck up all your vitality (life) then the young man will die...Their decision was...
