I Have Become The Hero’s Rival

Naturally charming, Irene attracts women like a magnet, even when she doesn't mean to. Enter her best friend, Claudia, who refuses to marry any of her three suitors because of her affection for Irene. As a result, these powerful and mentally unstable men declare Irene as their rival in love and threaten her life. She knows none of them deserve to be with Claudia, but she doesn't want to die! To save both her friend and herself, Irene must prove she's their ultimate rival, but will she succeed? Read manhwa I Have Become The Hero’s Rival / Your Ultimate Love Rival / I become the rival of main characters / Became a Match For Namjoo / 남주의 연적이 되어 버렸다
“I’m gonna live with Irene for the rest of my life.”
“….. What?”
“I said, I won’t get married and I’ll spend the rest of my life with Irene!”
I wish I heard it wrong. Regrettably, I couldn’t stop Claudia.
“As long as I have Irene, I don’t need anything else.”
The three men looked at each other, then glared at me with angry eyes.
The insane obsession of The Crown Prince’s possessiveness, the smiling Duke yet something malice hid underneath him, and the cold eyes of The Knight that sent chill to my bones. It’s as if they regarded me as their rival.
“Shit. What kind of situation is this?”