Rule 34 Dev - 10s 1boy 3girls ahoge akatsuki_kojou blush closed_eyes greyscale heart high_ponytail highres himeragi_yukina kirasaka_sayaka kiss la_folia_rihavein long_hair manyako_(mohumohu) monochrome multiple_girls non-web_source novel_illustration official_art open_mouth standing strike_the_blood sweatdrop sweater|9158086431