Board Thread:General Discussion/@comment-108.50.230.106-20150608234952/@comment-10380701-20150608235551

Honestly, it can go either way. However, her age determines the reason for Weiss being the heiress.

Older Winter Schnee means Weiss is better than her at something and earned the right to inherit the SDC.

Younger Winter Schnee essentially sets Weiss for heiress on account of being older.

Either way, their relations are likely not great, as Older Winter is probably a bit jelly of Weiss while Younger Winter can't relate too much to Weiss due to age difference.

That's my cent on the matter.