safebooruhttps://safebooru.org/index.php?page=atom&tags=1boy animal arm up armpits bird black gloves blue background blue hair book dr. ratio (honkai: star rail) english text fingerless gloves full body gloves hair between eyes highres holding holding book honkai: star rail honkai (series) male focus math miemiebei muscular muscular male pectoral cleavage pectorals pillar sandals short hair solo twitter username2024-06-11T15:07:35Zsafebooru