inuzumi masaki, natsume eri, nami (neko kawaigari!), nami (nekokawaigari), umi (neko kawaigari!), umi (nekokawaigari), neko kawaigari!, nekokawaigari, game cg, 2girls, ahoge, animal ears, bed, blush, cat ears, closed eyes, hair ornament, hairclip, holding hands, illness, lying, multiple girls, on back, pillow, pink hair, sad, school uniform, serafuku, short hair, siblings, sick, sisters, sleeping, sweat, twins, yellow eyes