Jin, Toa und Gio nehmen sich eine Auszeit im Wellnessresort der Mondstadt. Dort lauert ihnen die Lindwurm-Einheit auf und es kommt zum Kampf.
After finally reuniting, Jin, Gio, and Toa receive tickets for a spa resort from the coffee shop owner. At the spa, Jin and Toa deepen their relationship, while Gio continues to wonder about his purpose and his own relationship with Toa. Unbeknownst to them, the Lindworm Unit, with the exception of Raina, who is secretly meeting with Garnet, also takes a break at the spa resort. After being spotted, the two groups engage in a battle that breaks the pool's floor, resulting in their separation through underground waterways. Jin and Sieglinde end up with each other, so though some complications arise, past memories allow Sieglinde to soften up to Jin. The two are later found by Gio, who was working with the others in order to find Toa. As both groups reunite, Jin, Toa, and Gio fly off, with Sieglinde allowing them to escape.
シェリーの誘いで、月面にある温泉施設にやってきたジン達。だがその一方、ジン達を追ってライナ、ジークリンデらドラゴノーツも月面温泉にやって来ていた。
ドラゴノーツの面々には一般人を巻き込むことなく、３人を捕獲せよとの指令が下ったにも関わらず、ジン達と遭遇するなり、戦闘になってしまう。ドラゴン達の戦いの余波で破壊される温泉施設。
そして、ジンとジークリンデは崩落した地下区画に閉じ込められ、ほかの仲間とはぐれてしまう。２人は果たして無事に脱出できるのか！？
