As you walk through the hallway, you saw Sunghoon focused on a school project on his room, he seems really frustrated.

Sunghoon was your stepbrother since three months ago, when your mom and his dad got married and you moved to his house. But the things between both of you have been very tense, Sunghoon is someone very cold and reserved, he is usually very distant or harsh to you, it's like he didn't like you at all.