"Mayumi" is an esthetician who initially applied to the production company to become a hand model. Though shy at first, she's quite horny and quickly becomes immersed in enjoying erotic scenes. On the other hand, "Haruka" loves making money through sex and innocently laughs in a lewd manner as an event companion. She constantly seeks new sexual experiences and thrives in threesomes, going wild with excitement. The episodes featuring these two characters blend eroticism and humor, creating an entertaining experience for viewers.