In the end, was there any doubt?
Ves might be troubled if he tried to recruit someone who was absolutely unwilling to abandon everything and join a risky venture, but Vivian Tsai was not at that point. She merely didn't have enough time to weigh such a life-changing decision.
Since that was the case, Ves directly pre-empted her normal decision-making process by challenging her. Once he ignited her passion, he lured her in by offering her an implicit promise to turn her ship designs into reality.
This was enough to win her over!
"Will you really make use of my ship designs?"
"Yes." He said. "Of course, they will need to match my requirements and specifications. As long as your work conforms to what our Larkinson Clan needs, then I will do my best to find a shipyard to realize your work."