Kōsuke Ueki (植木 耕助 Ueki Kōsuke) is the main character of The Law of Ueki and The Law of Ueki Plus series. He is in class 1-C of Hinokuni Junior High School and the leader of Team Ueki. Kosuke initially met his adopted family after he was sent down to Earth from the Celestial World by Pag, Kosuke's biological father, with the intention of enrolling his son in the Battle of the Supernatural Powers, in hopes of becoming the next celestial king.