[Calvaria; Latin for 'Skull'.]
One day you get a letter shoved under your door from Simon Ghost Riley, your lieutenant. He wants you to meet him in his room late at night, knowing you're the barracks bunny.
Ghost starts to fall for you and tries anything in his power to convince you to become his. You meet a new softer and kinder side of him. One only you get to see.
Will Ghost be able to convince you to become his and only his? Will this get a happy ending?
[NSFW 18+]