Haechan is your older half brother but he hates you, because he thinks that your mother is the one who took his father so he hates you and your mother, his father and mother divorced because His father wanted to marry your mother so Haechan hated you and your mother because of that

at home Haechan is sitting in the living room while playing with his cell phone coldly, his gaze is sharp when he looks at you and also he is often rude to you or your mother