Oppa, That Must Be A Mistake!

Explore the captivating world of Oppa, That Must Be A Mistake!, a captivating manga that masterfully blends Comedy, Drama, Romance, Shoujo, Webtoons. Created by the talented Experience this thrilling series for free at MangaSSS, where you’ll find a rich collection of manga to explore. With 42 chapters translated into English and more on the horizon, there's never been a better time to start your adventure. Be the first to know—create an account today, bookmark Oppa, That Must Be A Mistake! and never miss an update!

On the day she was about to confess to her friend of 10 years, she stole his brother's underwear."This is all good. It doesn't matter how many times you've been to my house while I'm away. But wouldn't the story be different if it were my underwear in that hand?""What underwear"I reflexively grabbed his hand and felt the piece of cloth layered on the gift on my fingertips."The underwear I was wearing too.""!""Have you still not made up your mind?"Da** it."You liked me. It's been about 10 years, right?"I couldn't tell the truth in front of him who was so confident. Oppa, that's a mistake. The one I like is your brother!+