The Hero Is Overpowered but Overly Cautious, Vol. 2 (light novel) — Light Tuchihi

Everything's gonna be okay…The difficulty ramps up as Gaeabrande proves just how tough an S-ranked world can be! But whether his foe is a gargantuan lord of the flies boasting unparalleled speed and agility or an invulnerable god of death who makes all previous enemies seem like jokes, Seiya does what he does best…He retreats to the spirit world and trains like there's no tomorrow. Along his never-ending road to self-improvement, he encounters a new deity with a certain…quirk, masters an ability so far beyond overpowered that it's completely broken, and makes Rista extremely upset! Again! The kid gloves (and weighted bracelets) come off as the battle with the Demon Lord looms just beyond the horizon. But for all the training he's done, will Seiya be perfectly prepared this time…?