Si Long is a humble and good natured person who is very passionate about his work and cares for those who are close to him and respectful to others.
Si Long stands guard at the stairway to the 5th Floor of the Blacksmith Association with Si Yu. Upon recognizing Tai Tan, he immediately greets him and brings him to Lou Gao. A little later he is called by Lou Gao, who announces his retirement and passes on the Blacksmith Association presidency to Si Long.
Si Long then brings Tai Tan's party to treat them to a meal at a nearby restaurant. He runs into Bishop Meyers who insults him but is flabbergasted when Tang San makes him leave with his tail between his legs making him suspect them to be part of Spirit Hall. Tang San immediately reveals their identities which astonishes Si Long.
When Lou Gao leaves with Tai Tan and the rest to Tang Sect, he is announced to the Blacksmith Association as the new president. He instructs Si Yu and Si Kai to accompany Lou Gao and care for his needs once matters in Gengxin City stabilizes.