Net Game Haijin no Isekai Tenseiki - Kobushiou to Yobareta Saikyou no Kobushi ga Tsukaenai node, 1-nichi 8-jikan Konbou wo Furu Koto kara Hajimeta

In the VRMMORPG Versus Online, Kazuya was known as the Fist King. But when he defeated the Labyrinth King Pharaoh, he woke up and had somehow been transported back to when he was 12 years old! Moreover, this world is a game world where monsters exist?! However, he can no longer use his once-invincible fists, and his stats are all at beginner level. For now, Ichiyo starts by practicing swinging a wooden staff for eight hours a day... In a world where heavy weapons reign supreme, he aims to become the strongest by utilizing analog weapons, his fists, and the cheat skills he alone knows from the game world!