One possible plot could be that Izuku, with his determination and unique quirk, somehow gets transported to the Marvel universe. There, he meets Iron Man. Iron Man, being the genius he is, is initially skeptical of Izuku but soon realizes his potential. They might team up to fight a common enemy, perhaps a villain who has technology - based powers that combine aspects of both their worlds.
Well, one way it could develop is that Izuku starts to incorporate Iron Man's technology - like his repulsor tech - into his hero gear. He might study Tony Stark's engineering skills and use that knowledge to upgrade his costume, adding things like enhanced propulsion or better defense mechanisms. Maybe he also adopts Iron Man's confidence and quick - wittedness in battle, becoming a more strategic hero.
Maybe it's Obadiah Stane. He's jealous of Iron Man's success and with Izuku in the picture, he sees an opportunity to get rid of Iron Man once and for all. He could also see Izuku's quirk as something he can use to his advantage, so he tries to capture Izuku and use his power against Iron Man.
It might have a similar color scheme to Iron Man's suit, like red and gold. There could be a glowing arc - reactor - like device on his chest that powers his suit. The suit would probably have boosters on the feet and hands for flight and enhanced punches.
There are many speculations about the man in the iron mask. One theory is that he was an illegitimate son of Louis XIV. He was locked away with an iron mask to hide his identity so as not to cause a scandal or a threat to the king's power. Another view is that he was involved in some sort of political intrigue at the court. However, the exact truth remains uncertain and has been the subject of much debate among historians.
In the story, the man in the iron mask was a mysterious prisoner. His identity was kept secret, and he was forced to wear an iron mask all the time to conceal his face.
Iron Man's origin in the comics involves Tony Stark getting captured and using his engineering skills to create the first Iron Man suit to escape. After that, he continued to improve and develop the technology to become the hero we know.
'A Lang Xin Ru Tie' was a modern TV series directed by Chen Shukai and scripted by Liang Liren and Ruan Shaona. The drama was first broadcasted in China Hong Kong in 1994. The main actors included Jiang Hua, Wu Xuewen, Wan Qiwen, etc. The plot was about a reporter named Shen Wenhao (Jiang Hua) who fell in love with a girl named Fang Xiaoxin (Wu Xuewen), but Fang Xiaoxin already had a fiancé named Yu Jiale (Zhen Zhiqiang). The three of them had a complicated love story. The drama was a success in Hong Kong in 1994.