"The Story of a Middle-Aged Man with a Lolita Complex Who Was Reincarnated as a Hero's Armor"

A middle-aged man with a shotacon fetish who died in a typical otherworld reincarnation accident, remained faithful to his desires while diligently accumulating good deeds day by day. His efforts were recognized and he was promoted to a spirit, becoming a guardian spirit protecting the hero of another world. He becomes possessing an suit of armor and accompanies the hero's adventure—a familiar JRPG journey. A young hero, a young thief, a handsome knight, a rugged martial artist, a young hunter, a pretty boy bard... At every turn, the middle-aged man with shotacon tendencies encounters young boys and young-looking men, and he doesn't seem to mind at all. By the way, what about the Demon King...? Wait? This is supposed to be a hero's adventure tale, but there's no Demon King?