Mazoku no Musumetachi to Okuru Midareta Isekai Seikatsu
魔族の娘たちと送る乱れた異世界生活
A clerical error by a goddess drops Hiro Takanashi into another world, and by way of apology she grants him a cheat ability that makes him irresistible to the local women. The catch becomes obvious fast: the only women anywhere near him are the terrifying commanders of the Demon King's army. Being adored has never felt less reassuring, and Hiro's harem comedy fills up with the sort of characters most heroes fight rather than date.