Mako comes off as confused, trying to be both a mournful, pitiable soul cruelly tortured by an unfair world despite being a serial killer who has, according to the stories you’ve written, mauled at minimum four and likely much more people to death, and also a situationally savvy communicator, who chews people out with peculiar verbiage and then completely changes his tone in the next spoken sentence.
Nailing down who exactly he is, what he would do in a given scenario, and picturing what you yourself in a real conversation with him would look like might help bring together his disconnected elements into a more focused and complete vision.
