Enta Jinnai

Enta Jinnai is a second-year middle schooler whose bond with Kazuki Yasaka stretches back to their earliest childhood days. The two once shone together on the soccer field under the title of the 'Golden Duo,' but Enta's feelings for Kazuki have long since grown into something far deeper than friendship. After transforming into a kappa, he throws himself into battle fueled by the dream of reclaiming those glory days on the pitch side by side with Kazuki. Beneath his genuinely kind nature, however, a fierce jealousy quietly burns—leaving him emotionally torn as he struggles to protect the secrets they share.