After thinking for a while, Meng Shaoran couldn't find an answer as to why the chubby man died so easily. In order to defeat the chubby man, he had used his most powerful attack, which he intended to use to just injure the chubby man and to follow it up with more attacks of his own but instead, he died with just one attack, leaving no traces behind except for a pile of ashes.
While they were fighting, Su Pei used the opportunity and moved far away from them. He hated the domain realm master who taught him for five years but he still felt grateful for his teachings. He taught him that he must retreat as far away as possible when two domain realm masters were fighting.
When Su Pei saw Meng Shaoran defeating the chubby man, his respect for Meng Shaoran skyrocketed. This young man who was the same age as him might be even more powerful than his 'master'. After the fight ended, he inched closer to Meng Shaoran as he felt safer as he got closer to him.