2girls, aged up, aircraft, airplane, alternate costume, black bow, black shirt, black skirt, bow, brown hair, buttons, closed eyes, closed mouth, collared shirt, frilled shirt, frills, grey jacket, hair down, head on another's shoulder, high collar, jacket, light brown hair, long hair, medium hair, multiple girls, on chair, parted bangs, shirt, signature, sitting, skirt, sleeping, suspender skirt, suspenders, upper body, white shirt, window, yuri