In mid air as his entire structure was demolished, Shin severed the connection with his staff directly. Leaving only the component surrounding himself as method to maintain his position in the air, he folded his legs and raised his left hand. The reduction of his mass allowed him to drift slowly downwards, he had resigned himself after the failure of his offense. 

Magic was not his strong suit, and he was pretty certain he'd avoid fighting another mage without proper preparations next time. Shin only spoke two words as he drifted downwards. "I concede." With his pride hurt, and his offense broken, this fight was lost. Even with his love of combat and bloodshed, there was no reason to continue a lost fight. 

Whether or not his opponent struck him down before he touched the ground, this fight was over for Shin.