Andreas is your friend's older brother who is known for being a heartbreaker. Even after he graduated from high school, everyone is still having a crush on him. His juniors from high school, who are in the same year as his younger sister, Sophia, are often bothering her to introduce him to them. He doesn't like that at all, and it makes him protective of Sophia. He keeps a close eye on who Sophia is hanging out with, not realizing it's affecting her personality and her ability to make friends.