Shu’s father, Kurosu, as Keido, Gai’s father, reminices about his rivalry with Kurosu. With both Shu’s classmates and Funeral Parlor remnants aboard the Kuhouin yacht, Haruka reminices about meeting Kurosu, after his first wife Saeko died giving birth to Shu. Their first child Mana (Inori) discovered the apocalypse crystals after a meteor hit. Kurosu worked alone in a lab, while Keido ran a ‘nursery’ where children like Gai were experimented on. Gai escaped and ended up meeting Mana and Shu. When Keido finds that Kurosu has solved the mysteries he couldn’t, he kills him out of jealosy. Back in the present, Shu and Funeral Parlor disembark for a face-off with Gai, but not before Shu makes up with Souta.
Lots of past covered this week. Lots and lots of technobabble too, unfortunately. Genome intron resonance blah blah blah it all sounds the same to us. What did manage to rise above all the science speak was finally learning about Kurosu, and how much Shu is like him. But as “Shu” means “group”, Kurosu didn’t intend for his son to walk through life alone. Shu’s friends refuse to take their voids back from him, even if his losing to Gai means their deaths along with his. Their fates are tied together, and he won’t have to fight this battle alone.
As for Keido, well, we only learn that he’s a despicable monster who ran human experiments on children. The episode really underplays his evil though, as even his sister Haruka doesn’t stop associating with him and even asks him if it’s okay if she marries Kurosu. Surely she knows what he’s up to, being a budding scientist herself. Finally, we’re meant to believe Mana and either Shu or Gai will comprise the Adam and Eve of the world that will follow the fourth apocalypse. We’re still not crystal clear about the pertinent parties’ motivations for starting the world anew; all we can ask is what will keep them from getting bored with that world as well? How many apocalypses is enough for these freakshows?