1girl barefoot black_flower black_one-piece_swimsuit blue_archive blush closed_mouth commentary flower hair_flower hair_ornament halo hand_on_own_cheek hand_on_own_face highres ichika_(ichi_ka0) long_hair looking_at_viewer mutsuki_(blue_archive) one-piece_swimsuit ponytail purple_eyes school_swimsuit side_ponytail simple_background sitting solo swimsuit very_long_hair white_background white_hair