Women's Prison - two athletes (first part) (Pixiv Fanbox)

Callie and Bryony are were both aspiring athletes before they were sent to the Leda Women's Prison. They have been brought to the staff room to take part in a sporting competition. A line has been drawn on the floor. Whichever prisoner pulls the other over the line wins. The loser will be sent to the punishment wing. The guards gather round to watch the physical prowess of these athletes. (The background is a placeholder. I'll update it with some more detail when I post the next part.)