Jagan no Ossan: Saenai Misoji no Peropero Harem Musou

Determined to turn his life around, Takuto enrolled in a magic school, only to be bullied. At the job agency, he was mocked, and at the guild, he was utterly defeated by a 12-year-old kid. Takuto (a former shut-in, now 30 years old), the weakest and most uncool guy in this town, one day gained the ability "Evil Eye: the power to seal a demon in one's eye." Manipulating earth, commanding lightning, making girls fall for him, even seeing through clothes... The comeback of the guy who obtained the strongest eye power begins.

(Source: Sankosha, translated)