I Will Die When I Am Happiest

On a rainy day when he was ten years old, Gu Luo met Su Bai, a girl that only he could see. From then on, Gu Luo was able to see terrifying existences that ordinary people could not see. The girl told him that she would eat him when he grew up. At the age of sixteen, when those monsters finally attacked Gu Luo, Su Bai appeared like a protector and rescued him, and signed a contract with him to fulfill Gu Luo's three wishes. When he was satisfied and felt happiest, Su Bai would take away his soul. Is it happiness or misfortune? How should Gu Luo move forward in the future...