I Have the Strongest Summoning Body

I am a second-year junior high school student and I am also the first person on earth to have a summoned body. Due to various reasons, I will encounter harassment from demonic bodies from time to time. Therefore, my summoned body "Water Lion" has become a celebrity in the school, and I must hide the secret that I am the original body. However, the Demon Kingdom is powerful, and I must select people who can use the summoned body to defend peace together! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.