Yi, who loved Xiaomi the most, died in a car accident on her birthday. Yi once said that even if one day he left her, he would find an angel to continue to love her, but when Yi left, the angel didn't know where he was. Later, Xiaomi learned that Yi's heart had been donated to a boy on the day of the car accident. Xiaomi believed that this was equivalent to extending Yi's life, and she must find Yi's heart, so she found a way to transfer to a new school. Here, she met Yin Tangyao...
