Although Empyrean Oceanheart previously had thoughts of seducing Vaan herself, she still had some reservations in her heart due to a number of factors.
Her age, status, and cultivation were all factors that prevented her from seeing Vaan as a potential partner.
She could only treat him as a junior.
However, Vaan was a bottomless mystery box, constantly surprising her. His talent and feats had exceeded those of the younger generation and were comparable to those of her peers.
As such, she, too, had stopped seeing him as a junior and had come to see him as her peer instead.
At least, that was the case until Vaan bestowed the priceless Seed of Nihility Law, making her greatly indebted to him. It was a gargantuan favor that could never be repaid in any lifetime.
It was also because of this instance that she felt the greater need and urgency to bind him to her race through a marital connection.
