An Invitation to the Underworld! The Joubert Sisters!.While Heero is in a hot battle, Mimori meets Alice at that time. It was the infamous bounty hunter Justine sisters who appeared in front of the two who enjoyed a momentary conversation. Mimori and Alice, who were challenged by the Justine sisters in a "tag battle," throw themselves into an unbeatable battle. "Tell me, my sister." "Sister Justine is an invincible bounty hunter ..."