13_(spice!!), 1boy, 3girls, @_@, arona's_sensei_doodle_(blue_archive), bed_sheet, blanket, blue_archive, blush, braid, closed_eyes, comic, dress, gloves, greyscale, halo, hand_on_own_head, hat, kirino_(blue_archive), koharu_(blue_archive), long_hair, long_sleeves, lying, monochrome, multiple_girls, naked_sheet, on_back, one_eye_closed, open_mouth, santa_hat, sensei_(blue_archive), sleeping, thumbs_down, under_covers, unworn_dress, unworn_gloves, unworn_hat, unworn_headwear, winged_hat, yuzu_(blue_archive)