A Journey to Godhood in a World of Magic

Reborn in a world of magic, I was granted power close to the limits of human strength by the Supreme God, along with an ability that grows stronger in both combat power and defense whenever I win a woman over. The only problem is that I can't seem to use either my power or my ability. In this new world, I meet a blonde elf, a silver-haired beauty, a pink-haired girl with long ears...