The source of YY is the Qin Empire, but even if you haven't seen it, you can watch it if you know that Shang Yang exists~
Wedge: A story of time travel and anti-time travel. In 2230 AD, an accidental accident of a particle accelerator on the earth led to the body swap incident between Wei Yang, the chief minister of the Qin State in 359 BC, and Wei Yang, the president of the Supreme Court of the Earth Federation Military Government in 2230. No one knows whether this accident will rewrite history.
Aoyama-kun, the masked man, and a bunch of familiar people will also appear in reincarnation, so please wait and see.
I guess it's a long article, I'm so happy after reading it