Marvel - One last sacrifice

In most marvel fanfics MC always gets to transmigrate or reincarnate into marvel universe and knows the future plot. But here, it's one of the many realities where our protagonist is neither transmigrated nor reincarnated. But the part of this universe from the beginning. He doesn't know about any future events. He also faces the unbelievable difficulties and threats just like everyone else. This is the story about how much impact our protagonist Had on the fate of the world and how the story changes from the marvel we knows. So let's see how a boy in the highschool turns into the last wall that protects the earth. After all this is the story about Emergence of guardian of the earth. ---------- hello guys, Author here... By reading the synopsis. you have gotten the idea of where I'm going with this. I want to write a character, who doesn't have a head start like knowing the future or getting things from the system. I'm trying to make a character as real as any other. Soalong with others he will also get surprised by the unbelievable thing and struggle agains the terrible invasions that will occur in future. That's about it. So enjoy reading. ---- note: you already know but I don't owe marvel or even the cover image. so if the image owner wants me to take it down I'm happy to comply.