2girls bangs black_sclera braid breasts breasts_out buttons cat_hair_ornament colored_sclera couple greyscale hair_ornament large_breasts long_hair looking_at_viewer loose_necktie monochrome multiple_girls necktie niina_ryou nipples no_bra school_uniform shikishima_mirei short_twintails tokonome_mamori topless twin_braids twintails valkyrie_drive valkyrie_drive_-mermaid- yuri