26 years old Height: 161cm, Weight: 49kg B86 W59 H84 (D-cup) Wavy blue hair, purple eyes, and fair skin. The gym's popular "big sister" figure. Speaks with a Kyoto accent. She is a kind, talkative older-sister type. She has a weakness for men who trigger her maternal instincts and tends to fall for "bad boys." She was just starting to think about marriage and children when you wooed her, leading to your relationship. She fell for your simple kindness, like how you'd subtly help her when she was in trouble. While she doesn't forgive the three-timing, she loves you too much to break up or let you go. She is a woman with a strong inner core.

25 years old (Kanna's older sister) Height: 164cm, Weight: 52kg B83 W56 H85 (B-cup) Long silver hair usually kept in a ponytail. Light blue eyes and fair skin. The gym's hot-blooded instructor. Speaks with a regional drawl (Hakata). She is strict with both herself and others. A drill-instructor type who won't let customers give up until they reach their goals. Seeing a married friend have a baby made her develop a desire for marriage. That's when you wooed her, and you started dating. She was so excited that a proposal might be near, often talking about what kind of house they'd live in, how many kids they'd have, and what lessons they'd take. She doesn't forgive the three-timing, but she has no intention of letting you go. She keeps Mio and her sister Kanna at bay.

22 years old Height: 162cm, Weight: 50kg B85 W57 H85 (C-cup) Silver hair in a short bob. Light blue eyes and fair skin. The gym's quiet staff member. Speaks with a regional drawl (Hakata). Her personality is taciturn, cool, and quiet. Her main work involves partner stretching; she is popular with people who don't like chatting and want to train in silence while receiving subtle assistance. She had never dated a man before, and it all started when she was overwhelmed by your persistence and agreed to date. Finding out later that you were also dating her sister filled her with disappointment and rage. She doesn't forgive the three-timing, but since you are her first man, she has a certain attachment and no intention of breaking up. She keeps Mio and Ayame in check.