Conan noticed that a strange family had moved into the building across from the detective agency.
The older brother had a sunlight allergy and never went anywhere without a black umbrella. The younger brother seemed to have autism and was always by his brother's side.
The two brothers, so different from each other, caught his attention. At first, he thought it was just a little detail in his daily life. Until the world turned upside down.
Another version:
Kokushibo died, and then he came back to life.
When he opened his eyes, he found himself in a completely unfamiliar world. Following his instincts, he took in someone he thought he would never see again in this life: his younger twin brother, Tsugikuni Yoriichi.
When Yoriichi was ten, Tsugikuni Michikatsu discovered that this world had no demons, but it did have other kinds of monsters.
A story about a demon brother and his human younger brother living in the modern world.
Note: This is a crossover featuring Detective Conan and Jujutsu Kaisen.
Theme: When the moon looks up at the sun, turn around. The sun is watching you, too
