Did I End Up in an Urban Light Novel?

[Brother-Obsessed Younger Sister] + [Everyday Life]

Lin Ge, who stayed up all night playing visual novels, was finally punished by fate. He died suddenly at his desk, only to transmigrate into a world of lighthearted urban everyday life.

A gentle, captivating younger sister was now by his side. He thought life would be peaceful, but beneath the cozy surface lay hidden mysteries and danger at every turn. When black fog engulfed the entire island and monsters poured out of it, who would make it out alive?