A Valentine Fence is a decoration that can be purchased from the market. It is solely decorative and has no other function.
Title: Viscountess, Level: 21 / 50
You are able to either unlock this item; the player must be ranked Viscountess/Viscount as well as be level 21 or pay 50 rubies for early access. You can also purchase the Ruby version for 20 rubies. There are no differences in this two item regardless of payment method.