Ultraman: Monster Hunter from Day One

Level 99 gamer Leo wakes up in the Ultraman universe as Raymond, Earth's greatest Leonis warrior—no cheat system, just raw monster knowledge from his past life. While other fighters struggle, he dominates alien beasts with ease, earning respect from legends like Seven and even Belial himself. But when the mighty Tartarus arrives to deliver his grand speech, Leo cuts him off with a single word that changes everything.