1girl, black_footwear, blue_archive, blue_buruma, blue_eyes, blue_shirt, blush, breasts, buruma, from_below, gym_uniform, hair_intakes, halo, hand_on_own_chest, lanyard, large_breasts, long_hair, looking_at_viewer, official_alternate_costume, open_mouth, parted_bangs, ponytail, purple_hair, shirt, solo, sweat, thighs, very_long_hair, yakumo_ritsu, yuuka_(blue_archive), yuuka_(track)_(blue_archive)