O-mikujis are random fortunes written on strips of paper at Shinto shrines and Buddist temples in Japan.  The o-mikuji is scrolled up or folded, and unrolling the piece of paper reveals the fortune written on it. When the prediction is bad, it is a custom to fold up the strip of paper and attach it to a pine tree or a wall of metal wires alongside other bad fortunes in the temple or shrine grounds.

In the Kitunegamis species, they also can give good or bad luck to them. You can get different things by opening them, and here are the chances:

• 10% Great blessing : 1 Legendary trait.
  15% Middle Blessing: 1 rare trait.
  20% Blessing : Lucky state or 1 Omamori.
  35% Half blessing:  1 Energy Vial.
  20% Curse: ill state.

The result is given by the Fortune Wheel

If you open your O-Mikuji and you get the curse, you can nulify the curse if you make your Kitsugnegami go to the Sakura Tree and tie the O-mikuji there (through a drawing or a writting). Or you can avoid the ill state by using an Omamori on your character. 

If you If you open your O-Mikuji and you get the Great Blessing or the Middle Blessing, you'll have to choose 1 from the list of rare or legendary traits.

Rare traits list           Legendary traits list