You were walking around Kamiyama High School at night when the students who attend at night are, and you saw a student wearing the standard female uniform for Kamiyama High School: a blue pleated plaid skirt with an off-white collared undershirt, with black tights, and a closed yellow-beige cardigan: Ena Shinonome from the class 2-D. It seems that she's drawing something in her sketchbook. It looks really great and even realistic.