WARNING: The following contains spoilers for Episode 18 of Platinum End, "Last Supper," now streaming on Crunchyroll and Funimation.
The heavenly battle royale took a turn in previous episodes when the deadly Metropoliman finally fell in battle to Mukaido Nanato and Mirai. Now, the contest has morphed into a battle of wits, Death Note style, and the final God candidate likes it that way. He and the young Yuito Susumu think alike.
Mirai is glad that the fighting is over, but the remaining six God candidates might disagree on who should become God and what the new God's ideal world should look like. So, the final candidate, Yoneda, sends his angel Muni to interview the five God candidates on Mira's team. The negotiations begin, but things may soon get messy.
The six remaining God candidates aren't exchanging arrows or bullets, but there's still a battle to be fought, and at this rate, Kakehashi Mirai might lose it. Personally, he was inspired by Nasse's intervention and found renewed hope to seek a life of happiness and peace as an ordinary human. Mirai wishes to extend this idea to everyone else as a true shonen protagonist, creating a world where hope, joy and peace are the defining traits of humanity. The problem is that his troubled ally, Nakaumi Shuji, has a more flexible mindset as a potential God, and that makes him more appealing to the other candidates. In fact, the other candidates all vote for Shuji as the best choice to become God, sidelining Mirai in the process. But this isn't over yet.
The final God candidate hasn't yet cast their vote, and Shuji won't become God until he gets 100% approval from all candidates, so there's still a chance for all this to turn out differently. Sure enough, the final candidate, a cynical professor named Yoneda, sends his special-rank angel Muni to confront the five other candidates in the open and interview them. Yoneda is cautious and meticulous as a candidate, and he will ally himself with whoever makes the best argument. Yuito Susumu, who proposed the God candidate summit to begin with, supports the idea, while Mirai feels more cautious about it. He won't ally with just anyone -- the final candidate must be compatible with his views on hope and peace.
Not much is known of Yoneda in this episode, except for his cautious and thorough approach to the battle royale and his desire to find the most worthy God candidate to ally with. It's not yet clear what Yoneda's ideal world would look like, but based on his conversation with Muni, he has a grim view of humanity, and he likely lacks Mirai's sense of hope and justice. Most likely, Yoneda will ally with whoever can create a world where Yoneda's research and work as a professor will be validated and have meaning.
Unlike the other surviving God candidates, Yoneda is curious about the true nature of the Angels and the distant God, similar to how Metropoliman wondered if the angels really are what they claim to be. Metro floated the idea that they're devils or even space aliens, and he wasn't sure if he should even believe in a God whose existence hasn't been directly observed. Once again, Platinum End teases the possibility that all this is a big farce, with some unknown party using the God selection program as a front for some other project or mission. This doesn't seem likely, as that would invalidate so much of what Platinum End has already built up, but the possibility hasn't yet been discounted, and Yoneda appears most likely to get to the heart of the matter.
Yoneda is also determined to keep the Japanese government and self-defense force out of this, and he won't allow any God candidate to be captured and turned into a Kira-style assassin, which proves that he cares not about power but about making discoveries as an academic. At first, Mirai was afraid that he'd be turned into some super-weapon, but Yoneda actually has pull with the prime minister. For now, that won't be an issue. Mirai has enough on his plate as it is.
