Isekai Papa Katsu Oji-san

Takumi, is an ordinary guy who was reincarnated into a magical city in another world with cheating-powerful skills. His new purpose in life is...... "I want to play with young girls!" Takumi, who was strong enough to slay a dragon, quickly retired adventuring to stay safe. His next ambition is to be a "sugar daddy." With the help of the good elf Lolibaba, combined with his amassed wealth, he could easily attract young, beautiful girls. But this being a fantasy world, monster-girls appear at his dates, he gets lost in dungeons......, and even just being a sugary daddy has its deadly risks! An adventurous drama filled with love, excitement, and sexiness by a former S-class adventurer and current sugar daddy begins now...

(Source: Monster Comics, translated)