In exchange for a temporary level drop it gives the user a moderate cooking sub-skill. This item can be obtained in a quest.
2.14 Sweet Trap Edit
In the Valentine's day many people decide to make use of the Newlywed's Apron Dress in order to make sweets with the coconia fruit for the ones that they love, Nyanta lends his for Isuzu to make a sweet for Rudy, while Maryelle uses her own to make sweets for Naotsugu.
Route 43 arc Edit
The apron makes its first appearance in chapter 3, from which "2.14 Sweet Trap" is derived. It later appears when the members of D.D.D, Crescent Moon Alliance, Log Horizon, and West Wind Brigade have a cooking contest. It gets pulled out for Serara to bring on her trip, and then Nyanta planned on making William Massachusetts wear it when he went to Akiba with an alcohol dilemma.
While the apron itself is not an item, it is showcased in several Valentine's special event outfits. Similarly, the coconia fruit is a special acquirable item in Valentine's events.