Cop Falls in Love with Gangster Daughter's Alter Ego

When she was nine years old, the quirky Gu Xixi "created" a patron saint for herself, a "brother" personality with a male gender identity. At the age of twelve, she met Lu Jinghe, a police academy student, and they had a secret love for eight years. When they reunited at the age of twenty, Lu Jinghe was already a handsome detective and a gentle man. Rou's brother. While he was protecting his innocent "sister" Gu Xixi, he was questioning the personality of his extremely protective "brother" more deeply. When he finally pieced together the traumatic fragments behind his dual personality, he looked at the girl in front of him who was sometimes confused and sometimes cold, with only one thought in his heart. A thought: From now on, I will be her only guardian angel...