99% of yaois has the seme comitting awful crimes then being forgiven without any redemption whatsoever and just pretending that everything can go smoothly as ever
At least this work has consistency, the seme was always a obsessive psycho, you all knew that he did things beyond redemption.
This story ended exacly where it should.
I just think that Cho Ah should have k- himself instead of living such a pitiful life.