
okay im a bit lost but my guess is he transferred the souls connection so that he can kill someone he doesn’t care for or the person who was supposed to be beheaded so that he returns to his own body

This is what happened.
When Uke is in his own body.
The Old Fart swapped his soul into the emperor.
But before that, the Old Fart purposely reveal his criminal activity so that he will be captured into prison and sentenced to death.
That way, after Old Fart soul swapped with the Emperor, the Emperor who is in the Old Fart body cannot do anything inside the prison guarded heavily.
And the Ninjas will have hard times to rescue Emperor since by the time they realised what truly happened, there’s only 30 minutes left before the Emperor (inside OldFart body) will get the head chopped.
With only 30 minutes left, it’s hard to rescue the body, and not enough time to find a way to swap the soul back….
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Spoiler:.
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Just a moment before head got chop off, Emperor’s soul went back to his own body.
But I don’t know how. I only read spoiler from someone.
the moment i saw the moms i was like NOOO whyyy they were so cute and they actually loved him and everything??! and then i started crying when they showed the backstory of him and the boss as kids stopp