safebooruhttps://safebooru.org/index.php?page=atom&tags=1boy absurdres aventurine (honkai: star rail) black shirt blue hair book closed mouth dr. ratio (honkai: star rail) hair ornament highres holding holding book honkai: star rail honkai (series) indoors looking at viewer male focus ne dt0 red eyes shirt short hair solo window2024-06-24T09:27:37Zsafebooru