In the command room, Dylan gets the news from Loki that NIFL has finished preparing for the plan which is to make a critical attack on Basilisk. Yuu's party set out by ship to the place where they are to carry out their plan. After they arrive at the port, in one of the ship's rooms, Yuu tells Honoka that its was thanks to her that there was such a positive atmosphere on board the ship. Afterwards, Firill thanks Yuu for reparing Mitsuki and Lisa's relationship, then she gives a ticket to the hot spring to him as a thank-you.
Twenty-five years ago, the world suddenly changed when monsters called “Dragons” appeared; seeking to ravage the earth and find mates. Over time, superhuman girls possessing the powers of the dragons, called “D girls” were born. Yuu Mononobe is the only male “D” in existence and is forced to enroll at Midgar - an academy for D girls. At the academy, he accidentally runs into Iris, a delinquent D girl, while she’s naked, and even reunites with this long lost sister, Mitsuki, whom he was separated with at birth. Will Iris and Yuu, the boy who is supposed to become the strongest assassin, be able to challenge the seven dragons that threaten to destroy the world?
