Check your brain at the door before reading. The writing is terrible, and this is entirely subjective.
(The synopsis introduces some basic worldbuilding. Please read it before deciding whether to read the book.)
Yang Ren was just an ordinary young man who loved tokusatsu. After transmigrating by accident while doing a good deed, he woke up to find himself transformed into a mythical Greed who shouldn't exist.
“Hey, why are all the Yummy I've raised producing Core Medals? And why are some of them mythical Core Medals?”
“Oh my, what's this? Angst? Get rid of it. I'm here for the fun!”
And so, an ordinary young man became Fannings, a Greed named after “funny” who saves the world.
This book will cover many worlds. I like a lot of the tokusatsu heroines, so I'm sorry to anyone who prefers a single female lead or no romance. This book probably won't be to your taste.
I've never been in a relationship myself, so the romance may be pretty awkward. I'll list which heroines the protagonist ends up with in each world.
For now, I'm only planning to write Kamen Rider. I'm not sure about Super Sentai, since I haven't watched many of those shows. I definitely don't plan to write Ultraman; there are too many contradictory details over there, and I'd get confused.
For Kamen Rider, I'll mainly cover the TV series. I haven't decided whether to include the movies, and I probably won't write about the manga or novels.
In my personal vision, the protagonist exists to take the edge off the angst, so he's nearly invincible from the start. He'll grow even stronger as he absorbs more Core Medals. I don't want to nerf him, so I'll try to keep him from personally stepping in to fight too often.
The author is awesome!!