2girls, barefoot, blanket, closed_eyes, closed_mouth, clothes_lift, elysia_(honkai_impact), greyscale, honkai_(series), honkai_impact_3rd, long_hair, lying, maiqo, monochrome, multiple_girls, navel, on_back, on_bed, on_side, pillow, pointy_ears, raiden_mei, shirt, shirt_lift, short_sleeves, under_covers