|These Treasures may be discovered while questing through the Odyssey Event: Dead Memories.|
These treasures are only obtainable from questing in the Odyssey, Dead Memories. Discovery of a Lighter or Lighter EX opens the entire set to acquisition or theft via battles with other players who have also discovered at least one of the same set.
Once one of each of the six colors of a single set are in possession, the set locks and becomes a permanent part of your player. There is no way to lose or remove one of each treasure in this set because once locked, Succubus Twin Bovina is relinquished. The reward card can be picked up at any time from then on, even months after the event has ended.
Regardless of whether the card rewards are claimed, if all six event treasure sets (36 treasures) have been locked and the 100th chapter has been reached before the Odyssey is finished, the Event Completion Ultra Rare is awarded to your presents after a brief animation.