Because the Special Force is essentially a department with no real function, most of its members are offspring of Ancestral Court officials; they are either those with no talent and no access to departments with actual power, just passing time in the Special Force, or wayward children that families can't manage, sent to the Special Force for re-education.
For someone of Dina's age to be a captain in the Special Force, she definitely has a background.
However, she did not mention her family, and Chen Guan couldn't be sure of her relationship with the Xiu Family.
Dina strongly invited Chen Guan to join them. Originally, Chen Guan wanted to refuse, but when he heard that they were searching for Sword Spirits and had some clues, he changed his mind and decided to stay.
Because Dina said they had already determined the location of the Sword Spirits, but the direction she mentioned wasn't consistent with where Chen Guan had unearthed Sword Spirits before.
