Despite the upcoming exam, Nino still has trouble following Fuutarou's study session, even trying to avoid it. One day, Nino lashes out and gets into a huge fight with her sisters, resulting in both her and Itsuki leaving the apartment. Then, there's Yotsuba, who is still shackled by the school's track team.
The volume cover features Itsuki Nakano in her student uniform, with reddish-orange colored flower petals scattered in the background.
- Kept the Tamako-san stuff secret from her sisters.
- Her morning routine is jogging.
- She got a ticket for riding a bike without helmet.
- Her morning routine is make-up and yoga.
- When in beauty saloon, she gives the "don't wanna talk" aura.
- Her morning routine is checking her fortune.
- When making the "totally understand" face, she actually doesn't understand at all.
- Her morning routine is watering the plants.
- Practices imitating her sisters whenever she takes a bath.
- Her morning routine is doing sit-ups and yoga.
- Chapter 42: The Seven Goodbyes ④
- Chapter 43: The Seven Goodbyes ⑤
- Chapter 44: The Seven Goodbyes ⑥
- Chapter 45: The Seven Goodbyes ⑦
- Chapter 46: The Seven Goodbyes ⑧
- Chapter 47: The Seven Goodbyes ⑨
- Chapter 48: The Seven Goodbyes ⑩
- Chapter 49: The Seven Goodbyes ⑪
- Chapter 50: The Seven Goodbyes ⑫
The Quintuplets Can't Split A Marathon Evenly
- Yotsuba suggests joining a long-distance relay race to deepen the sisters' bond.
- During the race, Yotsuba runs along with each of her sisters, thus completing the whole race by herself.
- A bust size measuring robot (with a design resembling Fuutarou) shows that the sisters' bust sizes have a total of 441 cm (implying one of them has a larger bust size than the others).
Fuutarou-kun Can Divide A Cake Into Fifths Evenly
- With a careful calculation, Fuutarou shows Nino that he is able to divide a cake into five equal parts.
- In the first chapter of Volume 6, the story shows Rena's goodbye to Fuutarou and he falling into a body of water. In the last chapter of Volume 6, Chapter 50, the story shows Fuutarou fell into a body of water and his goodbye to Rena.
- The flower petals' color in the volume cover background represent the sisters' color scheme: Reddish orange for Itsuki and Itsuki's sweater.