Paige's probation (fourth part) - commission (Pixiv Fanbox)
Content
Paige's swimming team-mates invited her to explore an underwater cave with them.
However, upon arriving in the cave, they attacked her, ripping off her swimsuit bottoms and jamming the dildo knife (from part three) inside her.
When Paige came to her senses, she found her team-mates had abandoned her, alone under the sea.
*The commissioner says she survives though.