Niihara Rena

Eldest daughter of the Niihara family. The de facto ruler of the household when their parents are away. A locally infamous delinquent in her school days, she even led her own gang. Currently unemployed and drifting through life, she entertains herself by tormenting the protagonist whenever she's in a bad mood. This time, the protagonist will use hypnosis to settle the score for all those daily grievances.