Mental Protector in the Apocalypse

I woke up from my sleep, only to find myself trapped in an apocalyptic game. And of all things, it’s one where the protagonist is a hopeless and worn-out character with no dreams and aspirations who’s driven insane by repeated regressions! I can’t die in a place like this. I must see the ending and return home. To get back to my world, I needed the protagonist’s abilities. Since he’s just a game character anyway… I decided to use him. “I missed you, noona. I really missed you…”“…Why are you saying that all of a sudden? We’ve been together all this time.”“Please don’t throw me away. Okay? Don’t leave me behind. I’ll do better…” But this protagonist’s mental state was far too weak. And usi...