King of Gluttony: Book 6 in the Kings of Sin series

Tropes

Billionaire Romance

Childhood Friends

Enemies to Lovers

Throughout the whole story Maya and Sebastian were fighting their feelings for the sake of their jobs but knew the truth would never vanish, and even when their whole lives were burning down around them with the tension between their parents and the incident at their product launch, they were the only two who could support each other through all of it with their feelings unchanged, and the only two who truly understood and knew everything about each other.