Ryuken Ishima is the star of Ame no Kisaki, due to her tall stature, good looks, kindness, and generally tomboyish nature. She is a member of the Drama Club, and has played several male roles. She has a great number of fans and her own fan club. Mariya Shidou himself is actually quite jealous of her popularity. She was supposed to be Kanako Miyamae's roommate at the dormitories only to be run out the first night by Mariya Shidou so he could keep a close eye on Kanako Miyamae. Ryuken Ishima's fans cause mischief for Kanako Miyamae because they are jealous of her friendship with Ryuken.