Ryuu Yamada the main character in the manga Yamada-kun to 7-nin no Majo by Yoshikawa Miki. Yamada is a student at Suzaku high-school one day he accidentally switch's bodies with a girl named Urara Shiraishi, the incident is the start of Yamada and Shiraishi discovering the existence of witches. Yamada and Shiraishi discover that there are seven witches at Suzaku-high and they are two of them not limited to changing bodies with each-other but nearly anyone by kissing them. Each witch has a unique power and Yamada soon finds he does not have the power to switch bodies by kissing others but rather has the power to copy another witch's power by kissing them and had just been copying Shiraishi's power. Yamada and Shiraishi soon form a Super natural studies group with the help of student council