guys i just realized something, if you go to chapter 123 you can see the movie name was “The Actress And The Stagehand”,well this might be part of the movie..........,i hope so
@dragou if that were to be the case then shouldn't masayuki be the emperor now.
I believe this spin-off manga started somewhere in volume 8, when the rabbitmen chief stated that his daughter is running around in tempest.