Kieran entered the Battle of Winter Night as a Herder and he did not forget about that.
However, while his identity granted him the qualifications to enter the battle, it was also holding him back at the same time.
He represented Ai City, so he could not do something over, therefore, even though he knew the abandoned city had good things lying in the shadows, he had to search for them in a more subtle way, for his hands and legs were bound.
Although it was merely a deal, since he had made a promise to Huai Cuike, he intended to keep it.
BUT!
Things were different now, something unexpected had happened!
The lord, the big shot who organized this Battle of Winter Night, was actually plotting something!
Regardless of what this mastermind sought after, Kieran was freed from his shackles.
So even Huai Cuike couldn't say anything about Kieran's action anymore despite him striking the deal with Kieran.