I think the "It's your Fault" is directed at his grandpa for teaching him to kill, thus making him break his promise to Koga. Hence why he has tears in his eyes.
@Zxero You say this like translators write the manga and control when the chapters come out. Remember it was Arang scans that first translated this series, and got it sniped from them.
Thank you for the HQ!
@Sigilbreaker26 Yumigahama winning would be interesting, maybe he comes back later in the tournament, or his defeat is saved for Koga. I agree him stealing techniques is stupid, isn't that what Kanoh does?