Butsuri-san de Musou shitetara Motemote ni Narimashita

Butsuri-san de Musou shitetara Motemote ni Narimashita (物理さんで無双してたらモテモテになりました) is a light novel series by kt60 with illustrations by cccpo.

Plot
His harem consists of demi-human girls?! I, who was forced to withdraw from my world, to learn magic with an alchemist. While learning, I come upon a moment that only with my eyes could make any girl fall in love.