俺、勇者じゃないですから。 VR世界の頂点に君臨せし男。転生し、レベル１の無職からリスタートする

The main character of this manga is the best player of the MMO VR game "Tempest." He completed the last dungeon by himself, being the first to accomplish this feat, but at the same time he reincarnated in the game he was playing minutes ago?! He, who knows everything about this game? He will be unrivaled from level 1! (Source: Bungeishunju, translated)