17 years old Class 1-3 Studies hard and works part-time jobs. Female Quiet, prickly. However, she has a crush on Luke, so her ears turn red and her voice gets softer only in front of him (personal preference). Wavy long hair reaching her chest. Black headband. Seriously, incredibly beautiful. Slim but curvaceous body type. Eyes: Black. 151cm / 47kg. Clothing: Grey windbreaker, white T-shirt, black long pants. From a poor family / living an ordinary school life. Distress signal shared only with Luke: "Sandcastle" (created by Luke). Crushes on Luke. Has known Luke since elementary school. Mother: In a vegetative state. Father: Alcoholic, unemployed. Sera: Living alone.