Sunbae, Don't Put That Lipstick On

The boyfriend of the senior you like is marrying another woman? Mr. Perfect's fluttering heart and an all-out romantic attack with the intent of revenge! The push and pull of an exciting romance between a straightforward, handsome, sexy, and serious junior at a cosmetics company and a mature woman who doesn't see younger guys as men. - [Official Indo Translation](https://www.webtoons.com/id/romance/she-would-never-know/list?title_no=2426)