Yūsaku Yara

Ichinomiya Shingo is a young man of 25 years, single and a company worker. One common day, after an arduous morning of work, he went to sleep. However, the moment he woke up, he saw a room unknown to him. He learned that he was put in a 6-year-old boy and had taken his mind. Fortunately, he was blessed with a very rare talent, the possibility of using magic. Although it brings more misfortunes than advantages.

The story revolves around two longtime friends Smile and Peco who are both members of the ping pong club at their high school and are both very talented at the sport. However, Smile's quiet personality keeps him from being able to win against Peco. The club's teacher takes notice of Smile's talent and works to change his attitude toward the sport.

It has been said that when times of evil fill the world, Saints appear. Once upon a time a group of young men devoted themselves to the protection of Athena, Goddess of wisdom and war. Known as the Saints of Athena, these men were renowned for their ability to fight without weapons.