1st Night – The Battle Panties wearing Gal and the STD is the first episode of the Papillon Rose R series
the battle to the death with Regina, Tsubomi and her friends have been living their lives obsessing over nothing but sex. At the Kabuki Butterfly a puzzling STD is spreading due to a virus weapon belonging to the Gel Dynasty, an organisation lead by Shiorinite. Tsubomi is in a relationship with one of her customers who she sleeps with while wearing her battle panties, a handsome young man called Razy Minowa. At that moment, a transvestite named Da Gi Condyloma (Dajiko) is continuing the plan to spread the new strain of the virus at the Kabuki Butterfly. Tsubomi is attacked by a sudden bout of dizziness and collapses to the floor due to the unknown illness. Margarette and Lily face a hard time as neither of their special attacks are effective. Tsubomi recovers from the illness and after obtaining new powers she transforms in Papillon Rose once again!