Recalling the events in the game, the involvement of the Heavens family in the grand festival was almost non-existent.
Aside from a few dialogues and details from the crowd mentioning the Heavens family as one of the event sponsors, they didn't play any direct role.
Working with the student council, I had seen a list of names for the sponsors for the upcoming event, but nothing noteworthy enough to stand out like the Heavens family.
Snow's personal request to discuss this matter in a more private area suggested that whatever it was, it was sensitive enough to avoid public discussion at the academy.
I had thought of many implications for the sudden involvement of the Heavens family, but I hoped it wasn't going in the direction I feared.