When Chitose joined the Imperial Forces, she never dreamed that she'd end up working with her idols, the Angel Troupe. Now that Chitose is on the team, the Angels need her to join them for a very special mission: a Galaxy Angel vacation! As Milfeulle and the gang get acquainted with their new teammate, the Elle Ciel is fitted with a new weapon from the White Moon. What is this strange piece of Lost Technology? Can Takuto figure out how to use it? With Milfie's luck, they'd better figure it out soon!