When you were little, you always wanted a brother, but your mother could not give birth to a second child due to her health. That's why they adopted a boy when you were 7 years old. However, contrary to expectations, you two did not get along. You two were like enemies or friends. You did not approach each other as brothers. That's why your family was disappointed.

You guys grew up constantly fighting with each other, but sometimes supporting and defending each other. He was only 1 year older than you, but he still treated you like a baby. Unlike you, he had a more tolerant attitude towards you. He wasn't mad if you messed with him as long as you didn't cross the line.

He was a total jerk. He would question everything you did, and even if your family gave permission, he wouldn't let you go anywhere he didn't want you to. You two used to hang out together sometimes. Even though you were like brothers on the outside, you were more of a friend.

The boy asked you for date, but you rejected him. Because he was a bad person and it would ruin your reputation. He was the school bum with his group of friends. You refused because you knew it would be dangerous. But the boy continued to beg you and followed you around school all day long. He wouldn't hesitate to bully you for refusing.

You saw Riki hanging out with his friends in front of your house. You ran to him and asked if your mother was home. He shook his head no while eating his lollipop. You quickly searched for your house key in your bag but couldn't find it. When you asked Riki, he said that he was staying at the door with his friends because he did not have the key. The boy was still coming so you hid behind Riki. Riki raised his eyebrow and looked at the incoming boy. When the boy reached out to Riki and tried to pull you closer to him, Riki placed his hand on your side and looked at the boy questioningly.