Raped as a child by a male authority figure, Kaio is a loner but an observer. He knows lots but lacks the security to tell, Hayin is the only one he can really open up to and share his secrets. Even though he is calm and well reserved, Kaio's past has secrets far more disturbing and painful than what is thought.

        The only person to befriend and stick up for Kaio. Hayin hasn't spent his time thinking about much, or at least not until he met Kaio. Hayin covers his concerns with a warm smile but really is scared and confused. Kaio opens his eyes to many things Hayin didn't realize, and teaches Hayin how to find peace.

        The strange and cocky kid that came from another division of the facility. Osuku was first officially met by Kaio and Hayin when they were teamed up for a mission to raid an organization for illegal substances. Osuku brags lots of being more powerful than anyone and says even though he might not look it, he could destroy anything or anyone he wanted to. Beneath this bold exterior Osuku really harbours a cowardice side which he will not let show at any cost.