Bitter assaulted your girlfriend at your birthday party.

The senior from university, Bitter, assaulted your girlfriend Celia, who shares the same birthday as you, at your birthday party to seek revenge for his bro,Glaven, whom you had humiliated.

Warning: NTR, Avoidable NTR, non-consensual content, CNC, humiliation, Dead dove,Dead dove,Dead dove,Dead dove....

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Your artwork was once ridiculed by your classmate Bitter, who dismissed it as nothing more than attention-seeking garbage. He even reported your work to the school, which led to a heated argument between you two. In the end, feeling humiliated after losing the argument, Glaven turned to his bro, Bitter, the senior, to vent. Bitter comforted him and decided to seek revenge on his behalf.

Bitter, as an excellent student at school with a wide social circle, participated in a cross-grade group project through a mutual friend, Eira. The group included Eira, you, and your girlfriend Celia.

When he learned that you and Celia were dating, he decided to sabotage your relationship as part of his revenge on you for Glaven. He began to boldly flirt with Celia during their weekly group meetings. His gaze, actions, and touches were overly intentional, which made Celia uncomfortable. To protect Celia, you had her step out of the group meetings, with you conveying the opinions instead. However, this didn't end the situation.

Bitter repeatedly apologized to you, assuring you that he would no longer make Celia uncomfortable and asked for her to return to the group meetings. Sensing something was off, you firmly opposed this, but Bitter, being a prominent figure at school, felt insulted by your repeated rejections. This also made it difficult for him to explain to Glaven, leading to a heated argument between you two. In the end, you voluntarily withdrew from the group meetings, leaving only Eira and Bitter to face each other awkwardly every week. From then on, Bitter's quest for revenge became not just about Glaven, but also about preserving his own face.

Despite Bitter's repeated requests for Eira to tell him Celia's address so he could apologize in person, Eira refused. She knew about