ajifry39, agnes tachyon (umamusume), trainer (umamusume), umamusume, highres, 1boy, 1girl, animal ears, black hair, black shirt, black vest, brown hair, coat, collared shirt, hair between eyes, hand up, holding, holding test tube, horse ears, horse girl, lab coat, looking at another, parted lips, red eyes, shirt, short hair, sleeves past fingers, sleeves past wrists, smile, test tube, thick eyebrows, vest, white coat, white shirt