4girls, 4koma, alternate_costume, backpack, bag, blonde_hair, comic, frog, gradient, gradient_background, green_eyes, green_hair, grey_eyes, hair_ornament, hair_ribbon, hair_tubes, hat, light_purple_hair, long_hair, multiple_girls, open_mouth, purple_eyes, red_eyes, ribbon, scarf, school_uniform, serafuku, short_hair, smile, snake