1girl ass bent_over blush choujigen_game_neptune compile_heart d-pad daiaru from_behind hair_ornament hairclip hood hoodie idea_factory looking_at_viewer neptune_(choujigen_game_neptune) neptune_(series) open_mouth panties purple_eyes purple_hair shiny shiny_hair shiny_skin short_hair solo striped striped_legwear striped_panties thighhighs underwear upside-down