I am not asking how a Luzon based polity or an Independent Luzon will be established because I already know how, I just want to know what culture sphere would it likely belong is it on the Sinosphere or the Indosphere
It looks on both because both Traders from Sinosphere and Indosphere would trade with it, I know that there will be both influences from the two Cultural Spheres I just want to know what will be the dominant cultural influence and Cultural Sphere.