Determined not to let him die alone, Rista opens a gate in the final area of the Demon Lord’s palace. It’s against Divine regulations, but she doesn’t have time to trudge through a dungeon. When she, Mash, and Eruru arrive, Seiya is already trapping the Demon Lord in the Gate of Valhalla.
The only problem is, time and time again the gate fails to close. The episode plays with our emotions as just when we think everything is over (Rista and Seiya even return to their antagonistic repartee), a more monstrous version of the Demon Lord spills out and fights on.
Rista manages to unlock all of her divine healing power—another instance of breaking the rules—but suceeds in fully healing Seiya, only for the Demon Lord to burst out of the gate once more. Seiya is prepared right to the end, summoning a second, bigger Gate of Valhalla to swallow both the Demon Lord and the smaller Gate.
The gambit succeeds, but this Gate can talk (and laugh), and insists upon collecting its payment immediately: Seiya’s life. Rista’s healing can only slow down his deterioration, until all she can do is let herself be drawn into Seiya’s resigned arms and say goodbye. Before he disincorporates, Seiya recognizes Rista for who she once was—Tiana—and his last expression is a smile of relief he was able to save her this time.
Rista leaves the knighted Mash and Eruru under Queen Roselie’s care and returns to the Divine Realm. She’s momentarily haunted by a ghost of Seiya—a low blow for the show, to be sure!—but more than anything you truly feel his absence and a sense of emptiness and emanating from Rista and her house.
The other gods and goddesses try to cheer her up in their own goofy ways, but they can’t change the fact that in saving the S-Class world Gaeabrande, she lost her hero, someone whom she loved implicitly. Aria also has the unhappy duty of bringing Rista before Ishtar, who announces her punishment for violating regulations.
At first, the punishment seems almost too cruel: she must liberate the SS-Class world Ixphoria, the world where her human self died, and where the Demon Lord took over and transformed into a Demonic Realm. Furthermore, her healing powers will be locked away, preventing her from offering any support for her hero. If she fails, she’ll be stripped of her godhood forever.
Just when we (and Aria for that matter) think Ishtar is needlessly piling on poor Rista, Ishtar reports that Seiya’s Double Gate of Valhalla ended up swallowing not only the Demon Lord, but the Chain Destruction effect that would have prevented him from returning to his own world upon dying. She then hands Rista a letter with the name and stats of her new hero.
She’ll be reunited with Ryuuguuin Seiya, albeit with a thousandth of the power he once had. She’ll have to somehow support him without the use of her divine powers, and he’ll more than likely have no memory of his previous lives with her. He’ll also be just a ridiculously cautious.
Cautious Hero took a very bold turn towards the serious and dramatic in its final two episodes, but it was an incredibly effective turn that felt both earned and necessary. All of the previous clashing of hero and goddess was suddenly placed in proper context, while the emotional stakes shot through the roof.
I was glad for a happy compromise of ending. Ristarte and Seiya will be reunited, but face a far greater challenge than Gaeabrande. If a second season is produced, I’d definitely want to see how they manage, and who will help them.