In Volume 1, Mizuki cuts her own hair.
In Volume 8 (page 93), Izumi finally cuts his hair.
In Volume 1 Chapter 1 Page 42, Midori reveals her hair.
Volume 1 Chapter 1 Page 7, Kyo reveals her hair.
In Volume 1 Chapter 1 Page 13, Momoko's mother cuts her hair forcefully.
Volume 1 Chapter 1 Page 31, the girl gets annoyed with the boy and cuts his hair in the middle of class.
In Volume 1 Chapter 1 Page 30, Ichigo's hair is forcibly cut by the talent stylists.
In Volume 1 Chapter 1 Page 18, Mari has her hair cut by a stylist under Akko's suggestion.
Chapter 1 Page 17, Her hair is cut by her brother.
Kyouko
Hanazakari no Kimitachi e