>>81938898Its basically Senchou going on a journey to find and save herself from her delusion that shes still 17. The treasure shes hoarding in her youth, and antagonist non ghost marine is telling her to drop that shit and fade away already for both our sakes.
There's also a few frames that heavily imply they're both the same person, like how they have mirrored eye colors, and marine is suddenly damaged where she slashed ghost marine.
Also OP picked the perfect image for op, Kumarine is dissapoint in all this shit posting done by our pet Schitzo today.