Kayoko was a member of the tea ceremony group at her school, but was described as being playful and energetic rather than elegant, which is what would be expected of someone performing in a tea ceremony. Hiroki Sugimura was in love with Kayoko, but she was unaware of this. He first notices Kayoko when he see her taking a flower arranging class in the same building where he practices martial arts. Both Hiroki's sensei and Shinji Mimura notice that Hiroki watches Kayoko after class. Kayoko and Hiroki meet when she notices him helping a distraught kitten at school. She helps him relieve the cat, and explains that she has three kittens at home. It is revealed that Kayoko had been afraid of Hiroki due to his fighting in the dojo, but she now sees him as a caring and friendly individual. Kayoko