Jitsu wa Ore, Saikyou deshita - Episode 1 - Frey Wears Skinsuit

Haruto, given an insane level of barrier magic by a ditzy goddess, learned how to wrap Frey in a bodysuit.

Haruto, a shut-in loser, died alone and a failure in his room. An airheaded goddess somehow decided the undeserving sad sack needed reincarnation in another world with overpowered magic levels. Unfortunately, the measuring devices of that world only had two digits and couldn't register the flop's four-digit number. His family quickly abandoned the disappointing never-been infant in the forest for monsters to eat. Flame Fenrir, a massive demon wolf, found the baby Haruto floating in space as he experimented with his barrier spells.

Haruto quickly defeated Flame Fenrir, whom he dubbed Frey for short, and asked her to feed him. Human babies need human milk, so the wolf girl changed forms and offered her mammaries. But lactating only happens after impregnation, so Haruto had more work to do for his meal. A passing rural baron, Haruto's uncle, knew of the abandoned baby and soon solved everyone's problems without starvation or baby seed.

Nine years later, Haruto still thinks he has no magic ability because he constructed a measuring device that had three digits. Frey is his attendant and gets along well with his younger sister Char. He is less of a sad sack failure these days.