4girls, bag, baseball cap, closed eyes, closed mouth, collarbone, glasses, greyscale, hair ornament, hairclip, halo, hat, holding, holding phone, jewelry, long hair, long sleeves, looking at another, monochrome, multiple girls, open mouth, phone, pom pom clothes, pom pom hair ornament, ribbed sweater, ring, shirt, skirt, sleeping, sleeping upright, smile, sweater, train interior