Is it reasonable for my scientist to build a plug-in?

As a genius scientist, Duanmuyan was selected by the world consciousness of the parallel world after his death, and got a second life. In exchange, he needs to help this world fight against the coming alien forces.
This is a comprehensive daily world without any supernatural powers. In addition, there are also unemployed Saitama with still hair, a group of ghosts who can't breathe, and Gojo Satoru, an ordinary teacher who doesn't wear a blindfold... ...
Faced with this completely immovable situation, Duanmuyan had no choice but to find another way...
Therefore, under the witness of people, special photography heroes came into being one by one.
There is a family who signed a contract with the devil and became the Shirogane family of Kamen Riders;
Tanjiro Kamado, the famous novelist who pulled out the sword of fire;
Chiku Ishigami, a genius physicist who bravely fights aliens;
Kirito, a talented player who cleared the death game with one life;
Later, there was an ultra-ancient warrior of light who recovered from the pyramid...
A few years later, when the alien invaders came, looking at the Kamen Riders and the Warriors of Light, I couldn't help but fell into deep thought...