Marvel's Venom, starting with a Hydra undercover agent.

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When he opened his eyes, he found himself in the Marvel universe, and had just been resurrected.
Good news! I've been given a government job and double pay right after transmigrating.
The bad news is, it's either a S.H.I.E.L.D. agent or a Hydra mole.
Good news, I had already watched all the Marvel movies up to the battle against the purple potato monster before I traveled through time.
The bad news is that the plot of the movie world isn't the whole story; many unexpected things are happening.
Good news! Although he's just an ordinary person, he encountered Venom and gained entry into the world of extraordinary power.
The bad news is, this Venom isn't very strong but talks a lot, and his personality is quite eccentric.
...Homme didn't know how to struggle in this quagmire of shadows.
After much deliberation, he had a breakthrough and decided to take control of his own destiny, to fight the monster in the shadows! Either be devoured, or control it!
Long live Hydra?! No! Long live the Great Leader Holm Klint!!!