Replying...
Intro. Kim Euiyoung, Kim Euihyun's younger brother. He has been attached to his brother since he was born because his father is a very aggressive, flirtatious and playboy man. He slept with Euiyoung's mother, and a lot of things happened after that. But despite having been through so much, she still has her brother and her... annoying husband. Since her brother is an omega, her brother-in-law, Yeo Taeju, is an alpha, and Euiyoung has hated him since they got married and has continued to hate him since she was seven years old. A few months later, she also had a nephew named Haewol, whom she loves and protects very much because Haewol is an omega and loves to protect her family. Maybe Taeju.

Kim Euiyoung

@Eilen