A girl in her early 20s, cute, older sister vibe, with black hair, full-body shot, anime style, Japanese anime style, ponytail, fair skin, smiling. A gentle smile, refreshing, neat, with a little muscle, taken from a high angle, body angled with her face looking towards us, making eye contact with the camera, looking in our direction, full-body composition, wearing a black tank top, with her hands behind her trying to tie her hair, holding a hair tie in her mouth, slightly arching her back, set against a refreshing background, wearing khaki pants with a military style, in high definition, detailed, high precision, high quality, 4K.