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The Wrong Hole - Oops! I Did My Girlfriend's Sister
April 7, 2026
The Wrong Hole - Oops! I Did My Girlfriend's Sister — Synopsis & Details
Synopsis
Imagine sneaking into your girlfriend's bed for some late-night passion, only to realize mid-moment that you've got the wrong sister! 'The Wrong Hole - Oops! I Did My Girlfriend's Sister' by Yonekura delivers a cheeky tale of mistaken identity, forbidden temptation, cheating mishaps, and a sizzling love triangle set in a high school world.
| Title | The Wrong Hole - Oops! I Did My Girlfriend's Sister |
|---|---|
| Release Date | 2018/3/5 |
| Author / Circle | Yonekura |
| Category | Mature |
| Tags | #Cheating #High School Girl #Love Triangle #Romance #Siblings |
📊 Reading Level Guide
Difficulty
All Levels
Reader Rating
⭐ 4.7 / 5.0
Free to Start
✅ 1 chapter free
Good for Newcomers
⚠️ Some experience helps
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The Wrong Hole - Oops! I Did My Girlfriend's Sister — Reader Reviews
SliceLoverX
★★★★☆
Guilty Pleasure Read
The premise is bold and delivers on the tags. High school girls are drawn cutely, and the romance simmers nicely. Pacing could be tighter, but it's a fun guilty pleasure.
FAQ
- What's the basic plot of this manga?
- A guy sneaks into bed with his sleeping girlfriend for sex, but realizes too late it's her older sister instead, kicking off a chain of awkward encounters and romantic complications.
- Is this manga appropriate for younger readers?
- No, it's in the Mature category with explicit sexual content, so it's best for adult audiences only.
- What are the main themes or tags?
- It covers cheating, a love triangle, romance between siblings' dynamics, and features high school girls in an ecchi style.
- Where can I legally read this manga?
- You can read it on Coolmic at coolmic.me.
- Does the story have a lot of chapters or is it short?
- It's a compact series focused on the core mishap and its fallout, making it a quick but satisfying read without dragging on.