Toki Onjouji

A third-year student at Senriyama Girls' High School in North Osaka and the protagonist of the manga "Toki". She was named one of Senriyama's ace players for the 71st Inter High School Mahjong Tournament despite being a relatively unknown player prior to it. She's a very sickly and unathletic girl, and is often seen lying face down in her teammate Ryuuka's lap.