In the year 2036 in Kyoto, a gangster organization named Paint Star is rampant. A new plainclothes female police officer, Yu Li, reports to the most elite anti-gang police department in Kyoto. In the process of getting along with the female boss Kuro, the bond between the two gradually deepens, but Yu Li does not know the other identity of this female senior - the young gang leader of the Paint Star Gang. In this way, the romantic comedy between the two begins!