Just as the space-time tasker Liyue You was about to be promoted, she accidentally fell into a space-time rift and landed in the world of Detective Conan.
Because her rank was incompatible with that world, she was corrupted and transformed while her body was being reconstructed, becoming a false god.
Her body was weak after the reconstruction, so before losing consciousness, she struck a deal with Renya Karasuma.
After waking up and reviewing what had happened, she realized the space-time rift had undoubtedly been a trap set for her. To survive and find more evidence, she partnered with Renya Karasuma and helped the Karasuma family handle its dirty work.
And because she wanted to live a better life, she became one of the Black Organization's ultimate bosses without a shred of guilt.
