I'm starting to think Orochi lives. Orochi transfers power back to Momo's familly, publicly, and Momo shows his wisdom & strength of character by ordering an end to the bloodshed between the two families by allowing Orochi to live (whther that's in jail/supervised/probation etc).
It gives Momo a moment to showcase him as a new ruler that doesn't believe violence is the answer & if you want to think of it "realistically " there would be a segment of the populace that thought it was treasonous rebels that killed Orochi & took his spot, which would only continue the cycle of resentment &violence.
It gives Momo a moment to showcase him as a new ruler that doesn't believe violence is the answer & if you want to think of it "realistically " there would be a segment of the populace that thought it was treasonous rebels that killed Orochi & took his spot, which would only continue the cycle of resentment &violence.