There Is No Ultraman, but I Am the Genius Keigo Masaki

[Original monster worldview, the protagonist loves research and experiments, and is both good and evil] When Liang Zhengwu woke up, he was transported to a devastated world. In this world, monsters ignore thermal weapons and have been running rampant for more than 30 years. Billions of people have died in the disasters caused by the monsters. But what makes him despair is that there are monsters here but no Ultraman, no armored warriors, no masked Superman, and no superheroes who can save the world. Even as a time traveler, Liang Zhengwu was unable to change all this. But one day. He awakened the Masaki Keigo template. [Masaki Keigo, the paranoid scientific madman and madman-like genius in Ultraman Tiga, you got his talent, you got his learning ability, you got his perseverance...] Liang Zhengwu began his research. The first object of his research is himself, and he wants to transform himself into Tiga. But in the end, it failed. But he quickly changed his mind. If Ultraman couldn't do it, what about the monsters? Is it possible to transform into a monster? The moment the experiment succeeded, he came to a conclusion. Only monsters can defeat monsters!