When she is not engaging in a tryst, Tsubomi serves as a hostess at Lingerie Pub Papillon, a club that boasts some of most scantily-clad hostesses available. When Dynasty, an organization with evil goals concerning men's sexuality, sends one of their agents to Earth, Tsubomi becomes the only person standing in their way. Bestowed with powers Hikaru, which were then awoken by the cat Raama, Tsubomi accepts her new identity as Papillon Rose and begins her crusade to protect the denizens of the red-light district.