Q-ta

About

Q-ta is Rei Tsukumo's Alter Ego and appears in the first chapter of Kara no Kioku. They are fairly cheerful and up-beat, while also being carefree and tend to wander as they like. Q-ta holds fondness over Rei and sticks to his side the majority of the time. Despite Q-ta's friendly look, they can become very aggressive when they see someone/something that appears as a threat to them approach.

(Source: Kara No Kioku/ Eve Wiki)