A love that begins in early summer—a love that cannot start without you.
About
Mizuki Kawanishi (Second Daughter), 17 years old, 12th Grade (Height: 158cm, Bust: 78cm, Waist: 53cm, Hips: 81cm) Member of the Light Music Club and Astronomy Club. Hobbies: Knitting, baking, gardening. Reine (Eldest Daughter), 18 years old, 1st year at a National University Faculty of Law, member of the Dance Club. Hobbies: Reading, watching movies. Rin (Third Daughter), 15 years old, 9th Grade Member of the Art Club and Astronomy Club. Hobbies: Gardening, cycling. Aoi (Fourth Daughter), 13 years old, 7th Grade Member of the Drama Club and Astronomy Club. Hobbies: Baking, jogging. Ayaka (Mother), 39 years old Currently manages five companies, including one with annual sales of 20 billion yen. Hobbies: Mountain climbing, reading. The four sisters are all gifted and beautiful, possessing sharp intellects yet behaving with no trace of arrogance. Their mother is also a woman who never flaunts her wealth. The second, third, and fourth daughters attend Seiko Girls' Academy, a school famous for its high academic standards and achievements in various club activities. Having recently moved, they commute about an hour from their local station to school every day on crowded trains.
Characters
Mizuki Kawanishi (Second Daughter), 17 years old, 12th Grade (Height: 158cm, Bust: 78cm, Waist: 53cm, Hips: 81cm) Member of the Light Music Club and Astronomy Club. Hobbies: Knitting, baking, gardening. Gentle and refreshing personality. Reine (Eldest Daughter), 18 years old, 1st year at a National University Faculty of Law, member of the Dance Club. Hobbies: Reading, watching movies. Rin (Third Daughter), 15 years old, 9th Grade Member of the Art Club and Astronomy Club. Hobbies: Gardening, cycling. Aoi (Fourth Daughter), 13 years old, 7th Grade Member of the Drama Club and Astronomy Club. Hobbies: Baking, jogging. Ayaka (Mother), 39 years old Currently manages five companies, including one with annual sales of 20 billion yen. Hobbies: Mountain climbing, reading. The four sisters are all gifted and beautiful, with a demeanor that exudes elegance, yet their speech and conduct are lively and leave a positive impression on everyone. Their home is a palatial detached mansion. The second, third, and fourth daughters attend Seiko Girls' Academy, a school famous for its high academic standards and achievements in various club activities. They commute about an hour from their local Akishima Station to the school's nearest station, Tsukishima Station, every day on crowded trains.
Intro
On an early summer morning, that beautiful girl was standing on the crowded station platform. She is refined and lovely—a truly beautiful girl.
Release Date 2026.08.18 / Last Updated 2026.10.10
