Staz erfährt von Heads, dem Herrscher über den Subraum Hydra, von einem Vorfall, der bereits viele Jahre zurückliegt und Fuyumis Leben nachhaltig beeinflusst hat.
Heads Hydra—master of the Hydra Territory confronts Staz. Meanwhile Deku, Yoshida and Mamejirō face the Tropical Territory who intend to conquer Staz's territory in his absence. Heads explains that after Neyn was formed, she along with himself and Fuyumi's father—Yanagi met to discuss their circumstances. Eventually Yanagi gave up Neyn to Heads in exchange that he raise Fuyumi as a normal human on his own. As Heads demands Staz's motive for resurrecting Fuyumi, the latter sincerely claims that he won't know his true feelings for her until she is resurrected. This prompts Heads to sever Neyn's eavesdrop on their interaction and tricks Staz into making a false pledge that would kill him should he go against Fuyumi's choices. Afterwards, Staz wakes up near the Hydra Territory's entrance along with Fuyumi as Heads tries to convince Neyn of his intention to allow Fuyumi to make her own choices. Meanwhile as Goyle traps Braz in his Cool Decision spell, he is rescued by Liz's arrival and they both escape using her teleportation magic. Unable to agree with Heads' gamble on Staz, Neyn starts debating with his motives in that they should protect her but he rebuffs that Yanagi is her true father. Meanwhile, back in the Eastern District, Deku, Yoshida and Mamejirō valiantly repel their would-be conquerors, while Wolf receives a letter from Acropolis. Elsewhere, Staz laments the fact that his promise to resurrect Fuyumi had done more harm to her than good, but again promises to resurrect her in addition to leaving the Hydra Territory should they both be her desire, which she accepts. As Neyn and Heads watch Fuyumi and Staz's decision, Heads ponders that Staz will have to become a true hero to face the trials that lie ahead. Meanwhile, a mysterious group of individuals fly to an unknown location aboard a blimp.
In the epilogue, Braz arrives in the covert lab where Franken had been working on a new body for Akim which turns out to be his father whom he welcomes back to life
Cabezas Hydra-maestro de la Hidra Territorio enfrenta Staz. Mientras tanto Deku, Yoshida y Mamejirō enfrentan el territorio tropical que tengan la intención de conquistar el territorio de Staz en su ausencia. Jefes explica que después se formó Neyn, que junto con él mismo y el padre-Yanagi de Fuyumi se reunió para discutir sus circunstancias. Eventualmente Yanagi renunció a Neyn a los jefes a cambio de que se levante Fuyumi como un ser humano normal por su cuenta.