Riko Amanai

Riko Amanai is a Star Plasma Vessel meant to merge with Master Tengen. Her caretaker is Misato Kuroi.

History
When Riko was young, her family was killed in an accident and was taken care of by Misato from then on.

Riko is found to be a match to merge with Tengen, which she doesn't mind. As Riko, along with Misato, are waiting at a location for Getou and Gojo, when they are suddenly attacked by soldiers of Q. Riko is rescued from the Q soldiers by the arrival of Getou and Gojo. After the Q soldiers are defeated, Riko wakes up and wonders who Getou and Gojo are. Misato tells Riko who Getou and Gojo are, which the two wonder why Riko is so spunkier. Riko explains to them how she views the merging with Tengen, and starts to yell that them with they stop listening to her. Riko suddenly notices that she is really late for school, and has them take her to school.

Riko then attends her classes when she arrive at her school, but doesn't have Getou and Gojo stay by her side. Riko is attending music class, when intruders invade the school.