Nathaimouse.

ALT Marble Hornets Route Nath and her friend, Trisha, decide to document Rosswood as part of a university project. Because of this, they are infected by the Operator's sickness and Trisha disappears. Nath finds Tim and he agrees to help her. This is the canonical route

ALT Happy Route Nath and her friend choose something different for their project, so they never get infected and manage to have a normal life. Tim and Nath meet in a different way: at the cafe where Nath works.

ALT Creepy Route This route is different, since we have Slenderman instead of the Operator. NATH is not infected, but rather is murdered. Later, her body is stolen from the morgue and used to be revived through necromancy, becoming an undead. She meets Tim and Brian at the "Creepy-mansion". Fact: NATH is not her real name in this AU. It stands for Necromancy-Animated Token Human. This route has a mostly humorous tone

ALT Proxy Route Following the same line as the canon route, Nath and her friend document Rosswood, get infected, and her friend disappears. The difference is that in this route Tim does not agree to help her. Being alone, Nath succumbs to the Operator's influence and ends up as its proxy, where she reunites with Tim. They are not on very good terms.