When a new cardian attacks a friend of Mako, she becomes hellbent on revenge. Rei uses her divination powers to discover where the cardian will attack next, and the girls go to challenge the monster. The situation turns dire, however, when the cardian defeats all of the girls and then starts to close in on Sailor Moon. Suddenly a masked man appears and throuws a white rose. He says he is the Moonlight Knight, and attacks the cardian with his sword. After Jupiter recovers and defeats the lion, the man vanishes just as mysteriously as he appeared. Usagis is heft wondering if the mystery man is really Mamoru in disguise.