From the start, he's lost his memory, and his body seems to have shrunk too. The good news is that he has a System, which will help him survive in this high-risk world.
The bad news is that the System tells him that if he doesn't find a famous detective before the countdown hits zero, he'll leave this beautiful world in one minute.
Kiryu Sento, soaked in torrential rain: ...
Kiryu Sento: If you want me dead, just say so. There's no need to be so subtle.
With debuffs stacked to the max, Kiryu Sento decides to lie flat and give up, calmly awaiting death. Fortunately, the System isn't that cruel, and the famous detective is a very dependable grade-schooler who picks him up within a minute and saves his life.
Having lost all his memories and forgotten the meaning of his own existence, Kiryu Sento doesn't actually want to live that much. But whenever he wants to give up, someone takes his hand and leads him forward.
Reader's Guide
● The pairing is the best match: a dumbass × a genius, but with a blackened Dragon and a Golden Rabbit. Yes, I made that Dragon go dark, but a musclebound idiot is still a musclebound idiot even after turning dark, so don't worry about it.
● Detective Conan carries the whole story. I might not have managed to show it, but he's really amazing.
● The detective and the genius are best friends.
● The famous detective can do anything, and the genius is unstoppable.
● It's been so long since I wrote the previous blurb that I couldn't think of anything, so I changed it to this. Sorry.
Theme: A false hero, true justice