Erstin Ho

Both Arika's and Nina's roommate. During the series's first episodes, Erstin mostly served as a bridge between the clumsy and spontaneous Arika, and the introverted and obstinate Nina, thus the trio became close friends, but she hides a dark secret that can shatter this friendship. Erstin harbors romantic feelings for Nina which was most evident in episode 6. During a pool scene, a creature was swimming around tickling the girls. Erstin thought it was Nina who was behind her and told her that if it's her, she's fin…