Kayashima, Taiki

萱島大樹

Taiki is Nakatsu's roommate and possesses the ability to see ghosts and detect auras. He consistently prepares aura reports for Nakatsu. He is also interested in yoga. Upon first arriving at Osaka High, he was teased by others because of his ESP skills. However, Nakatsu considers him a good friend.
In volume 4, Nakajo noted that Kayashima derived his name from "Kayashima Station," a railway station on the Keihan Main Line. He also claimed that many workers were injured during the station's construction, as a large tree was slated to be cut down. The tree was subsequently preserved, and the station was built around it. Incidentally, "Taiki" means "large tree."