15th Night – Our Hearts are One! The Hidden Holy Flower Orb is the 15th episode of the Papillon Rose ONA series.
Sister Abeille notices that a rift has appeared amongst the Papillon Soldiers. She proceeds to target Rose, who has isolated herself from the others. Dandy protects Rose, but he is injured. Rose is left to fight alone but she is saved by the Papillon Soldiers. Tsubomi is able to put aside her ill feelings towards her friends.
The Papillon Soldiers take a new vow to search for the Holy Flower Orb which will let them free Flora’s spirit.