Kou Tokisaka (時坂トキサカ 洸コウ Tokisaka Kou) is a main character and the lead protagonist in Tokyo Xanadu. He is a second-year student at Morimiya High School and is often paired up with Asuka Hiiragi or Rion Kugayama. Kou becomes the president of the Xanadu Research Club (X.R.C.) after the "Witch of the Misty Castle" incident at the Morimiya Academy.