Well it's nice for the sake of a climactic battle that Raiko flip-flopped really fast on his whole "you can just kill me now" thing
. Not that I don't get his logic at all, but I think his original mindset was fine. Turning to that kind of power now would be pretty pointless. What if he actually won? He had to have known that wouldn't have worked out for him either. Well I suppose he figured he'd lose so it was fine.
Real main villain (I presume) makes his appearance. Or at least the next major figure. Not like Haku was going to get to tap out on all this that easily.
I do kind of appreciate that Raiko did figure out that girl was not entirely on his side. Although in her heart she was so...mixed feelings for her. She did her job, but got the person she loved killed. Rough day...