Oops! My Stepsister icon

Oops! My Stepsister

Interactive Studio Inc.
★ 3.7 (17 ratings)
⬇ 1,000+ downloads
Est. actual: 1,448
Style: Simulation
Free
Released: Aug 12, 2025
No in-app purchases
Contains ads
Rated: Teen

Signals

1 this week All of this week's signals →
  • 🛠Updates quiet · updated 74 days ago
Installs since launch
0 724 1.4K 1.4K Aug 12, 2025 today
Tracking since Oct 5 — growth appears once we have a second daily reading.
Update history
3.0.0 Jul 24, 2026 · seen Oct 5, 2026
Only the current version so far — new entries appear as the game ships updates.
Oops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshotOops! My Stepsister screenshot
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.