Riko Amanai

In 2006, when Satoru Gojou and Suguru Geto were second-year students at the Jujutsu High, they were assigned to escort a 14-year-old girl, a second-year student at Renchoku Girls' Academy at the time. She was a "Star Plasma Vessel," a human compatible with Tengen, and was targeted by the curse user group "Q" and the religious group "Pan-Star Sect" of the "Vessel of Time" to prevent her assimilation with Tengen. Her parents had died in an accident, and she had a familial-like relationship with her caretaker, Kuroi. Initially, when she met Gojou and Geto during their student days, she behaved as if she and Tengen were the same, but deep down, she had a longing to live. She was killed by Toji Fushiguro, who was hired by the Vessel of Time group.