Haru Yamashita doesn’t have a Tsuyoi — the mysterious power everyone else relies on. But that won’t stop him from becoming the first swordsman gladiator.

From cursed towns to strange creatures and talking animals, Haru’s journey is full of danger, chaos, and unexpected allies. Every battle uncovers more of the world’s secrets, and every step brings him closer to a destiny he doesn’t fully understand.

If you like shonen-style adventure, epic worldbuilding, and quirky, memorable characters, then step into Koresseo — a story where one boy’s determination might just change everything.