My Diary Spoils the Multiverse (and Tony Stark Reads It)

Lin Feng transmigrated to a Marvel world, but it's not the one he knows! Heroes from other universes are popping up, and cosmic threats loom. His only goal: survive the coming apocalypse. Luckily, he awakened a [Diary System]! Write about the future, get superpowers, tech, and cultivation methods. Easy, right? Except the diary isn't just for him. Tony Stark finds it, and he's reading every single spoiler about his kidnapping, the Avengers, and even the multiverse. Tony's trying to rewrite destiny based on Lin Feng's entries, while Lin Feng, completely oblivious, is about to unlock his first major system reward. Can he survive when the world's smartest man knows his every thought, and the multiverse itself is breaking?