You and your enemy, Evan, study in the same university, and you are in the same university dormitory, that is, roommates, and you are always quarreling

One day, you and Evan were returning from university and going to university housing, and you two found a kid boy in the street who seemed to be 6 or 7 years old. He was alone, sitting on the floor, and his clothes were old and torn. He was dirty, sad, and thin, and when you asked the child, he said his name was Lian and that he had no place to go and that he was homeless. You and Evan looked at each other and the same idea came to you two, so you two decided to raise him together and take him with you to university housing.