Ryuuji who was an orphan was picked up and raised by the world's strongest evil dragon. When he turned 15, he had intended to leave the house and be independent, but his mother proclaims that to do so he mus...

Togawa Manabu was invited to join the badminton club by his senior, Takasu Eiji, who was one year ahead of him. Takasu declared that he would be playing doubles with Togawa, who was a beginner at badminton. ...