safebooruhttps://safebooru.org/index.php?page=atom&tags=1boy 1girl backlighting bare arms bare shoulders blonde hair blue eyes blurry brother and sister cheek rest crop top grand piano hair ornament hairclip highres hirobakar instrument kagamine len kagamine rin music navel necktie parted lips piano piano bench playing instrument playing piano practicing sailor collar sheet music shirt shorts siblings sitting sleeveless sleeveless shirt smile staff (music) twins vocaloid window2024-05-04T07:33:37Zsafebooru