Die ISDA bereitet den Start der Avenir vor, um das D-Projekt anzutreiben. Doch beim Start kommt es zum Kampf. Währenddessen muss Jin überlegen, welchen Weg er in der Zukunft einschlägt.
In a flashback, it is shown that Raina had known Jin's father. Back in the present, Raina and Howlingstar check up on Jin and Gio. Raina offers Jin to be a Dragonaut, but Jin does not believe he deserves to be one. Meanwhile, Kasuga explains his origins and reasons to Yuuri. At another location, Akira talks to Sieglinde, but is interrupted by an ISDA broadcast. Later, Jin and a revived Gio team up with Akira and Machina, and proceed to head into space toward Mars. However, before they can leave Earth, a deranged Kazuki attacks Gio on board Widow, inflicting damage to ISDA structures in the process. Their battle results in Kazuki and Widow being engulfed in an explosion. Jin, Gio, Akira, and Machina then continue to head into space. Meanwhile on Thanatos, a creature awakens.
地球圏で立て続けに起きたドラゴンによる騒動に、世間から厳しい追及を受けるISDA。
壊滅の危機を退けたものの、休む間もなくＤプロジェクトの準備を急ぎ進める事になるドラゴノーツ達。
大打撃を被ったドラゴノーツ基地は、その中枢機能を宇宙船「アヴニール」に移し、月への打ち上げの時を待っていた。
その一方、傷つき、眠りから覚めないギオを見守るジンに、ライナはドラゴノーツへの正式加入を誘いかける。ライナから語られる、ライナとジンの父親の関係とは…？
