I Shall Create the Hero’s Legend Behind the Hero’s Legend: The Heroics of A Royal Road Killer〜

This reminds me of that one manga (I forgot it’s name), where a guy who did not look that good and was already around 40, got his hands on a sword, which made him younger and look a bit better… also in current chapters, he always watches the butt of his party member who happened to look like a female (fun fact, she was in fact a female hiding her identity in the adventurer school or whatever it was, where he and his lover went to get points or whatever… dunno, haven’t seen any updates lately).
I mean, it starts similarly and also both seems to be going for the horny stuff, but it also has some vibes from another manga, which got an anime adaptation not so long ago (yeah, forgot the name of this one as well…).
That was about a guy who saved the other world by getting everyone friendly with each other, though at the end he fought with his friend who came with him accidentally to that world (summoned together with the hero) and made him “return” to his old world (got reincarnated), but got summoned again with his new classmates, reunites with his old friends, then sets off alone to prevent the war between humans, demons and demi-humans.

Anyway, this manga gives me the same vibe as those 2 mixed together… guy finds talking weapon and is surrounded with big tiddlets which he wishes to caress.