Qiu Bai had set his mind about doing things in his own way. His hatred that has been simmering for years couldn't be extinguished upon seeing that Yu Dong and her second branch was doing well. If he couldn't ruin Yu Dong completely then he might as well do it partially.
With that in mind, he nudged the mer next to him. This mer was the village idiot's son and was a bit on the slow side, though he was not completely mad like his mother, he wasn't smart either. He was blunt and spoke things without thinking anything through, which was why Qiu Bai brought this mer with him. This Tim's he wouldn't be stupid enough to light the fire by himself in case he ended up burning himself, instead, he decided to fan the flames by firing the gun while hiding behind someone else's back.