Comedy Ecchi Harem Romance Slice Of Life Smut

My Little Stepsister is Addicted to Gacha Games

Name: My Little Stepsister is Addicted to Gacha Games
Rating: 4.4 (14 reviews)
Author: tentacle_master

tentacle_master 2025-09-30

4.4 14 Ratings

Ongoing Status

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Synopsis

Update Daily at 12:30 AM UTC

Other name: I Got A Harem Of Yandere Cosplayers.

Makoto just wants simple things: decent WiFi for his gacha games, cash for instant noodles, and occasional stress relief.
After scraping together his savings for a happy ending at a sketchy massage parlor, he discovered his masseuse was Yuna, his gacha-obsessed little stepsister with an expensive cosplay hobby.
Before he could process what was happening, his wallet became her personal piggy bank, and his life spiraled into sexual blackmail and cosplay roleplay sessions while desperately hiding everything from their mom.

Things got worse when two more girls joined the chaos. Mika, Yuna’s supposedly sweet best friend, revealed herself. Then Ayane, his nerdy classmate who used to just borrow his ecchi anime, launched a hostile takeover of his already messy love life.
His bedroom went from a shame cave to a battlefield, as all three girls started fighting over who gets to be “Main Wife.”

Now Makoto’s just a fat, perverted pig-dog surviving on instant noodles while three beautiful, terrifying women control his life.
His bank account sits at zero, his dignity left town months ago, and his libido keeps making terrible decisions.
Looking at the wreckage, he can’t figure out how things got so complicated, or why some sick part of him actually loves every minute of it.

[Sexual Content Warning]
All characters are 18+ and above (otherwise, how can they have credit cards to spend on gacha lol) and have no blood relationship to others.
All the sexual acts mentioned are fully consensual and legal.

Gerne: Vanilla, Harem, Cosplay Sex, Roleplay, Consensual NonCon, Soft SM, Dirty Talk, Public…
NO NTR.

Please review, comment, and favorite if you enjoy my works

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