A Digimon shaped like a noblewoman clad in a large, wedding cake-shaped dress. Weddinmon thinks of everyone’s happiness as its own. When it sees a pair of Digimon friends, it will arrange a commemorative event of its own volition, collaborating with Shortmon to spread happiness with a king-sized cake. Digimon caught up in this are astonished, but by feeding them delicious cake, Weddinmon soon turns the event into a happy occasion.
In the face of a Digimon who would destroy such happiness, Weddinmon uses Whip Decoration to seal their movements with fresh cream hurled from the end of its folding fan, or Cake Cutting to split them in two with a sharp knife-hand strike. It also uses Happiness Fall to drop a big surprise from above: an enormous cake that explodes with a force that varies greatly depending on its size.