1girl chomado hair_ribbon hairband long_hair original personification pink_hair programming ribbon ruby-tan ruby_(language) school_uniform skirt twintails  2girls black_legwear book character_name chomado closed_eyes hair_ornament hair_ribbon hairband haskell haskell-tan hug long_hair multiple_girls open_mouth original personification pink_hair programming ribbon ruby-tan ruby_(language) school_uniform silver_hair skirt smile thighhighs twintails  2girls arm_around_waist blonde_hair blush book character_name chomado coq-tan coq_(language) hair_ornament hair_ribbon hairband hug long_hair multiple_girls open_mouth original personification pink_hair programming red_eyes ribbon ruby-tan ruby_(language) school_uniform skirt smile twintails