Asuka is engaged to Shuutaro in an Omiai, by arrangement of their parents, as a means of ending the age-old Mendo-Mizunokoji family rivalry. Unfortunately, as a simple "light hug" from her causes multiple broken bones and internal injuries, it seems unlikely that this relationship will ever be consummated, as Shuutaro is rather terrified of being crushed. She is voiced by Sumi Shimamoto in Japanese. Kotatsu Kitty is the very large spirit of a cat from the Edo period who died after his owners threw him out into the cold. After being brought to the Moroboshi house by Ten, he discovers a love of kotatsu. He then makes numerous further appearances, usually seen drinking tea or eating taiyaki at a kotatsu, often with the principal. After Kotatsu Kitty's introductory chapter, Takahashi's editor at the time liked the character so much that he asked her to have him reappear. The artist said he was fun and easy to draw. Kotatsu Kitty is voiced by Tomohiro Nishimura in Japanese. Principal The unnamed of Tomobiki High is a balding man who wears glasses. He is always very calm, rarely reacting to the strange things that happen at the school. He often organizes strange competitions and outings for the students that are intended to increase school spirit, but they never turn out as he plans. The principle is often seen with Kotatsu Kitty. The principal is voiced by Tomomichi Nishimura in Japanese. Kosuke Shirai is Ataru's freckled classmate and best friend. He is often involved with Ataru's usual mischief. Though he seems to be in love with Lum and Sakura like all of the male students, he has a girlfriend of his own. The only animation that Kosuke appears in is The Obstacle Course Swim Meet OVA. In the other animated adaptations, his roles are given to Lum's Stormtroopers, usually Perm. He gets his name from Takahashi's then-editor at Shogakukan. Kosuke is voiced by Kappei Yamaguchi in Japanese. Ryunosuke's father is an overbearing and domineering man who forces his daughter, Ryunosuke Fujinami, to act like a male. The Fujinami family has run a small beach cafe for three generations, and he desires a male heir to one day take over the business from him. However, his late wife left him only a daughter, so he gave her the masculine name Ryunosuke and raises her as a boy. Although Ryunosuke is interested in living like a