Responses
Okay 183 is where the puppy first appears when He Tian found the dog and tried to save it which caused his brother to get hurt trying to protect him.
Then go to chapter 228 that’s when He tian asked He Cheng if he saw the the puppy or not and he told He Tian he buried it.
Lastly go to chapter 252 and that’s where He Tian gets mad and runs into the woods to cry and He Cheng chased him and comforted him.
In the last few panels of chapter 252 it shows He Cheng still has the dog and never got rid of it.

I wish his brother would show him the dog because I just remember in one chapter He Cheng never killed/got rid of the dog he still takes care of it.