neu (neu neu1117), shinosawa hiro, gakuen idolmaster, idolmaster, absurdres, commentary request, highres, 1girl, 3others, balloon, birthday glasses, birthday party, black sailor collar, blanket, blonde hair, blue neckerchief, blush, bow, closed eyes, closed mouth, colored eyelashes, gradient hair, grey hair, hair ornament, hair spread out, hairclip, half-closed eye, hands on own chest, happy birthday, hatsuboshi gakuen school uniform, long hair, long sleeves, lying, multicolored hair, multiple others, neckerchief, on back, own hands together, parallel hairclips, parted bangs, red bow, sailor collar, sailor shirt, school uniform, shade, shirt, sleeping, smile, solo focus, under covers, upper body, white shirt