safebooruhttps://safebooru.org/index.php?page=atom&tags=4girls black sailor collar blue hair book brown hair chair classroom closed eyes closed mouth desk drooling eraser highres holding holding pen indoors kotonoha akane kotonoha aoi long hair mouth drool multiple girls neckerchief open book open mouth pen pencil case pink eyes pink hair purple neckerchief sailor collar school chair school desk school uniform serafuku short hair short sleeves siblings sisters sitting sleeping smile voiceroid window yamamomo (plank)2024-06-03T21:19:22Zsafebooru