Do Not Flip Left and Right

Kwak A-Ram, a timid, pushover girl who seems to be setting new records for failed relationships with every passing moment. She ended up having a one-night stand with Choi Si-Yul, a senior in her club whom she met for the first time at the club’s kickoff meeting. The only unusual thing about it was that she was on top. That’s right. She had a rather uncommon sexual preference. While her past boyfriends didn’t approve of it and she herself despised it, Choi Si-Yul seems to welcome it, or at least, he’s showing interest in her...

(Source: Bomtoon, translated)