(Marvel Crossover) What If the Avengers Had a Washed-Up Middle-Aged Guy

A middle-aged guy whom the kids on the street tease by calling an old man: Evan Williams. He innocently touched his hair, which he hadn't had cut in ages. He was only thirty, actually. Did turning thirty make you an old man? Evan is a doctor with no grand ambitions. He just wants to open a clinic in the little town where he lives, work there for a few decades, then retire and eventually end up in a coffin. He's never thought about leaving. Until one day, a man claiming to work for the Strategic Homeland Intervention, Enforcement and Logistics Division came to him and invited him to save the world. Evan looked at the agent in front of him, dressed in a neat suit, and took the cigarette from his lips, feeling conflicted. The initial pairing is Captain America~ Basically, this is a story about a man who joins the Avengers, always has a cigarette in hand, and drinks with everyone. He's a little run-down, but not to a spectacular degree, just a bit of a mess. Also, the protagonist's ability could be called a cheat. This is my first time trying a protagonist like this, so please forgive me if I haven't done a good job. The author doesn't know much about medicine, either, so please pardon any inaccuracies. Bows~ Theme: The feeling of slowly finding your way again after losing direction