Riko Amanai

Riko Amanai

She a student at Renchoku Girls' Junior High and the designated Star Plasma Vessel for Master Tengen's merger. Riko is an outspoken and feisty young woman who appeared to steadfastly believe in her role as the Star Plasma Vessel. She tried to keep up an aggressive facade at times, but she's really just a normal teenage girl who's been thrust headlong into the jujutsu world. Riko is a social girl who cares about her personal relationships. She is very close to her caretaker Misato Kuroi and enjoys spending time with her friends at school as well. Riko quickly became flustered when it came to people she cared about and her ability to be with them, resulting in an outburst of tears when that's thrown into question. Without a traditional family, Riko initially embraced her fate as the Star Plasma Vessel because she thought she was alone. Riko is a non-combatant, however she can still see curses and has a good understanding of the workings of jujutsu. She likely learned this after discovering her status as the Star Plasma Vessel, a perfect match for Master Tengen.

Misato Kuroi

she is the caretaker of the Star Plasma Vessel Riko Amanai. Misato is a kind woman who cares deeply for Riko beyond a professional level. They love one another as family and Misato is extremely loyal to her. She will fight fiercely to protect her and helped Suguru and Satoru understand that she is a kind girl. Misato is a sorcerer with the ability to see curses and jujutsu. She is mostly a non-combatant but she is capable of engaging in armed combat against an enemy curse user. However, while she possesses knowledge of jujutsu, Kuroi has never been shown performing it. Unprepared, Misato is vulnerable enough to be taken off guard and captured by non-curse users.