2girls, bangs, black border, blue hair, blunt bangs, blush, border, closed eyes, closed mouth, hair ribbon, hibimegane, holding hands, kotonoha akane, kotonoha aoi, letterboxed, long hair, long sleeves, lying, multiple girls, on side, parted lips, pillow, red hair, ribbon, siblings, sisters, sleeping, tears, under covers, upper body, very long hair, voiceroid