She is lively, cute and willful. She is the apple of the family and the eldest sister in the school. He had lived in the countryside and depended on his grandmother since he was a child. Suddenly one day, a man who claimed to be his "father" came to him and said that he would take him away. From then on, his life changed "earth-shakingly" on that day, and he who was originally cheerful had to become silent, making it difficult for people to get close to him. Until he met her. ． ． ． ． ．