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@izumi tsubasu，@yoneyama mai，@koku, safe, 1girl, Herta (Honkai Star Rail), Honkai Star Rail, three-quarter view, full shot, laboratory, Herta: gray-brown hair, violet eyes, wide-brimmed hat, purple robe, .The scene is captured from a three-quarter angle in the laboratory, Herta turns around to face the camera, She has a cold and analytical expression, Her purple robe flows around her, The lab equipment is visible in the background, The lighting is precise and cold., very aesthetic, masterpiece, no text