After the "Push Down" incident, the quintuplets discuss whether Fuutarou should be their tutor. Nino insists answering negative, while Miku helps Fuutarou to illustrate. Eventually, all quintuplets except Nino forgive Fuutarou. A new day, Itsuki visits Fuutarou's home to pay his remuneration. Later on, they go to the shopping centre together with Fuutarou's sister Raiha just like a family. At the shopping centre, they bump into the remaining four quintuplets. The seven then go to the fireworks festival. Fuutarou strengthens the relationships with the quintuplets through the chance, especially with the eldest sister Ichika. After the festival, they exchange the e-mail address. Following the elder sister, Miku, Yotsuba and Itsuki do so as well, but Nino took his student handbook away. To get his booklet back, Fuutarou went to Nino's room, where Nino happens to see the photo of Fuutarou's childhood. As an exchange, Nino also shows their childhood photo to Fuutarou. However, Fuutarou finds that one of the quintuplets is the girl he encountered in primary school's study tour in Kyoto.
- Chapter 6: Open the Door
- Chapter 7: Today's a Day Off ①
- Chapter 8: Today's a Day Off ②
- Chapter 9: Today's a Day Off ③
- Chapter 10: Today's a Day Off ④
- Chapter 11: Today's a Day Off ⑤
- Chapter 12: Today's a Day Off ⑥
- Chapter 13: A Kind and Loving Person
- Chapter 14: The Photo of Beginnings
The volume cover features Ichika Nakano.