Mothercon Tengoku ~Doukyuusei no Hahaoya-tachi o Kyokon de Boku Dake no Hara Mama ni!~

Life dealt him a triple dose of misery. He was unattractive, motherless and now bullied at school. One day his classmates locked him in a room after taking all his clothes.
He was so depressed he could die.
A fellow classmate's mother came to his rescue, though, and when she saw him naked she instantly took a liking. Life had dealt him one good thing.
His massive cock. Even though he wasn't good looking, even though she was literally old enough to be his mom, she wanted that hot rod between her long neglected thighs.
And when he slid inside her after all the years without a mother's love, he knew his place in the world now. He made a choice.

He was going to fuck every mother whose son had mistreated him at school.

To the bedroom! It's time to make a harem of milfs!

[From DLsite English]