1girl, brain, comic, greyscale, henshin, henshin_pose, hololive, kurose_kousuke, monochrome, oozora_subaru, oozora_subaru_(1st_costume), open_mouth, pose, serious, shirt, short_hair, short_shorts, shorts, solo, striped, striped_shirt, swept_bangs, v-shaped_eyebrows, vertical-striped_shirt, vertical_stripes, virtual_youtuber, wrist_cuffs