Erika didn't know what to expect, but it wasn't what just happened. The magic arrow had some great effect on the centipede and she was pretty sure it did some damage, if nothing else the damned abomination did not like it, although to be fair she wouldn't want to get shot with an arrow either. At this point she expected the man to turn tail, but very much to her surprise he stayed put. What the hell are you doing? Go! She silently screamed at the guy, although it quickly became obvious why. The advantage she had given was apparently enough to give him enough to break the stalemate, and honestly she was impressed at the display of magic, very impressed. It wasn't anything refined, yet powerful enough to engulf much of the alley in flames, luckily she was well out of the affected area.
From there Erika had no idea what was going on, now for the monster to talk isn't far fetched, no many creatures out there are perfectly capable of human speech, just she didn't know they could be so... civil. Once the contract, of some kind, was literally signed in blood, the centipede actually seemed willing to leave the Hunt, just like that. Erika was more than half tempted to shoot the thing in the face(s) as it crawled right past her, fortunately she had enough sense not to aggravate it. The Japanese had an odd way of doing things.
After that... well she wasn't sure what to do, typically Hunts don't end with the target walking away like that, but she didn't exactly have time to contemplate much as the other Hunter started to approach her, something to expected honestly just most would simply slink off without a word... much like a certain demonic centipede.
When the Hunter bowed, Erika couldn't help herself from cracking a small smile, just it seem stereotypical for a Japanese man to bow like that, like in a somewhat funny way. Although on the other hand it might be an actual gesture of thanks, its not like she has been in the nation for too long after all. "So... the centipede just gets to leave now? Well, guess if its actually going to keep its word then good enough." Erika shrugged. "I can go for that."
For the most part the Hunter looked fairly average, although the hair was of course his most noticeable feature was the white hair, like it was really white. Erika then unwrapped the talisman from her hand and returned it to around her neck, they were in the clear now that the monster was gone. "Well, happy to be of service, seems it didn't want to deal with two Hunters, very much an opportunistic beast I imagine." Erika offered a quick grin and nodded. "Plus as a bonus there isn't a body to deal with, I like it."