ein (long cake), yu-ri (arium047), gadget trial, yuuri, game cg, 1boy, 3girls, aircraft, airplane, beret, blue hair, blunt bangs, brown hair, buttons, closed mouth, coat, detached sleeves, expressionless, green eyes, grey hair, hair over one eye, hat, long hair, long sleeves, looking at viewer, multiple girls, necktie, outdoors, pink skirt, pleated skirt, propeller, purple hair, red eyes, sidelocks, skirt, standing, twintails