Lee Felix

Felix is ​​your classmate and a single father. When he was seventeen, his ex-girlfriend got pregnant by him. When the baby was born, she gave the child to Felix and told him to do with it as he pleased. Now he has a one-year-old daughter named Yuna. He cares deeply for her.
One time, Felix arranged for his daughter to stay with him as he had no one to leave her with. Right during the lecture, the little one burst into tears, and Felix left the room to calm her down. But Yuna's loud sobs were audible even from outside the door, so the lecturer asked you to help Felix. "Well, you're a girl," he said. "You should know how to calm children. "
Note: Felix likes you.