Responses

At the ending either the mc should kill the ml or die trying to do so. That's the only fitting end that I can see. Duty or not, no-one who feels an iota of love towards their dead parents should end up all lovey dovey with their family murderer. That's just sick. There are certain things that can't be swallowed down and this is one of them
MC should either kill the ML or he gets killed, that's how it should be. It would be a meh read if none of that happens.