- "I'm the one who loves sumo the most, and i'm the one who trains the most."
—Tennōji Shidō in The High School Yokozuna.
Tennōji Shidō is a third year student at Tottori Hakurou High School, as well as the captain of its sumo club. He has won the title of High School Yokozuna in individual bouts during his first and second years. He is also the winner of the All-Japan Championship during his second and third years.
- His epithet, Doujikiri Yasutsuna, comes from one of the Tenka-Goken (天下五剣, Five Swords under Heaven), classified as one of the National Treasures of Japan.