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Last updated on: 2026-07-31
Android Apps > Simulation > Oops! My Stepsister
Oops! My Stepsister icon

Oops! My Stepsister

3.0.0
Interactive Studio Inc.
0.00
0 reviews
1,000+
Downloads
Free

Is it wrong to love a sister you’re not bound to by blood?

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1,000+ downloads

About Oops! My Stepsister

Oops! My Stepsister is a simulation app developed by Interactive Studio Inc..

Download Statistics

Oops! My Stepsister has been downloaded 1.3 thousand times. In the last 30 days, the app was downloaded 71 times.

User Ratings

The app has no ratings yet.

App Information

Oops! My Stepsister is FREE to download. The APK download size is 47.71 MB. The latest version available is 3.0.0. The last update was on July 23, 2026.

Technical Requirements

The app has a content rating of Medium Maturity. The app has been available on Google Play August 2025.

Description
Find your perfect anime girlfriend in this unique bishoujo game!

■Synopsis■
You’re living an ordinary college life with your mom and dad when your father suddenly confesses—he’s actually your stepdad, and he has three daughters you’ve never met! Their mother has gone missing, and now you’re suddenly sharing a home with your new stepsisters. Your mom isn’t happy, you’re confused, but slowly you start to adjust. As you help them face their own struggles, you begin to suspect there’s something dark behind their mother’s disappearance… and you can’t help but wonder if it’s wrong to fall for one of them. What will you do?

■Characters■

The Responsible Sister – Yuri
The oldest sister, protective and cautious. She doesn’t trust your stepdad—and by extension, you. Mature and level-headed, but clearly under a lot of stress.

The Rebellious Sister – Hinata
Second oldest, with a sharp tongue and a defiant streak. Her prickly exterior may just be hiding a softer, more vulnerable heart.

The Sweet Sister – Mei
The youngest, cheerful and friendly. A skilled gymnast, though she struggles with self-confidence.
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More data about Oops! My Stepsister

Price Free to download
Total downloads 1.3 thousand
Recent downloads 71
Rating No ratings
Ranking Not ranked
Version 3.0.0
APK size 47.7 MB
Number of libraries ?
Maturity Medium Maturity
Ads Contains ads

App Performance Report

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Oops! My Stepsister compared with similar apps

Common keywords of similar apps

Wrong Mom Suddenly Stepdad Struggles Oldest Sister

Keywords missing from this app

Games Game Find Adventure Play Hidden Mystery Solve Detective Investigation Story Object Sonya Killer Love Sisters Recent Crime Free Interactive Dress Puzzles Save Https Blood Great Characters Experience Texting Family Enjoy Make World Unique Evil Text Power Kingdom Features Support Case Objects Mini Time Dark Quest Thriller Choice

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Downloads over time

Downloads over time
Subscribe to see download velocity and history

Oops! My Stepsister has been downloaded 1.3 thousand times. Over the past 30 days, it has been downloaded 71 times.

Changelog of Oops! My Stepsister

Show changelog

Developer information for Interactive Studio Inc.

Interactive Studio Inc.

nobuhiro.kono@interactive-studio.jp

Website

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Comments on Oops! My Stepsister for Android

★★★★★ Collin Magney · Aug 30, 2025
This game is charming and cute. All three love interests are cute and lovely to be around. This is an interesting experience. <3

Google Play Rankings for Oops! My Stepsister

This app is not ranked

Technologies used by Oops! My Stepsister

17 permissions
Subscribe to see full permission and library details
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Who Killed My Sister? icon Who Killed My Sister?
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