safebooruhttps://safebooru.org/index.php?page=atom&tags=1boy 1girl blue eyes blue hair blue necktie blue serafuku blush book book stack collared shirt cover cover page flying sweatdrops highres hinoue itaru holding holding book lab coat long hair necktie official art open mouth orange hair original physics school uniform second-party source serafuku shirt two side up violet eyes2024-06-01T11:08:52Zsafebooru