Sasen de Sumu to Omou na yo ~Kuzu Otoko no Soubetsukai~NewA Farewell Party for a Scumbag; 左遷ですむと思うなよ～クズ男の送別会～

Amamichi Mei is an ordinary office worker who tends to worry too much about what others think. But she has a secret she has kept hidden from everyone: she is dating Isshiki Shunto, the popular star of the Sales Department. After he says something that sounds almost like a marriage proposal, Mei feels happier than ever… or so she thinks. Then she catches him cheating with a woman from another department. Though heartbroken, Mei tries to move on and start fresh. For some reason, however, Shunto begins relentlessly harassing her after their breakup… When Mei finally reaches her limit, she decides she will not tolerate him any longer. It is time to deliver a stylish and deeply satisfying punishment to the ultimate scumbag who looks down on women! [Original Webtoon](https://mechacomic.jp/books/287636)