[The Backrooms] The Meaning of My Existence

Xiao Tang was a student about to start middle school. She had pink hair, black eyes, and stood 155 centimeters tall. She especially liked things that were a little scary, though she liked cute things too, and she became obsessed with the Backrooms. She was sitting in class, smoothing out her brain as she worked through a math problem, when she closed her eyes and transmigrated. Well, if she was going to transmigrate, she might as well make the best of it. She found a bottle of something like blueberry juice in the Manila Room and thought it was a supply. But after a day of agony, she turned into a Partygoer. At least she could switch back and forth at will.

And so, with the conviction that her kind must not go extinct, Xiao Tang set off on a journey...

(The protagonist isn’t invincible, and is even rather frail, but her strong character is a plus. She’s cute, too.)