Louis Arneb Steps Out of the Shadows
Full spoilers below for Re:Zero Season 4 episode 79, which aired in Japan on August 19, 2026.
The amnesia mystery hanging over the entire fourth season finally has a face. Episode 79 picks up with Subaru, freshly returned from another death, plotting a shortcut past the tower's second trial. His idea: read Reid Astrea's Book of the Dead in the archive and look for a hint on how to beat him.
What waits inside the book isn't Reid's memories. It's Louis Arneb, the last of the three Gluttony siblings alongside Lye Batenkaitos and Roy Alphard. The episode confirms that Subaru had already tried this exact plan once before, walked into the archive alone, and had his memories eaten on the spot. As Japanese anime news site Anime Anime notes in its reaction roundup for episode 79, viewers immediately connected the dots: "So she's the one who took Subaru's memories."
Konomi Kohara (Chika Fujiwara in Kaguya-sama: Love is War) voices Louis, and her extended psychological assault on Subaru in the otherworldly "Corridor of Memories" became a talking point of its own, with posts like "Incredible. It's a one-woman Kohara theater." Her plan is nasty in a very Re:Zero way. Gluttony apparently can't eat the same person's memories twice, so she needs Subaru to reject his pre-amnesia self entirely, splitting him into two separate people she can feed on. She works at it by using his eaten memories to expose his hidden feelings, one by one.
"Stand Up": Rem's First Lines in Years
The trap is cruel. Even if Subaru reclaims his old memories, that restored self would overwrite the person he has become since, the one who rebuilt his bonds with Emilia's party inside the tower. Choosing either self means erasing the other, which is exactly the choice Louis wants to force.
Then come footsteps and a familiar smile. Rem. Not the girl sleeping back in the capital, but a fragment of the "unneeded memories" Louis spat out when she fed on Subaru. She refuses the entire premise of the choice, asking why he is trying to pick only one, and then hammers him with the episode's title: "Stand up! Stand, stand, stand, stand up!!" When Subaru asks why she believes he can save everything, himself included, she answers the way she once did before: "Subaru-kun, you are Rem's hero."
Japanese X did not take it calmly. Inori Minase's return to the role set off reactions like "That's not fair, not fair! Thank you, Re:Zero!", "When Natsuki Subaru is at his lowest, it's always Rem who saves him," and "That 'Stand up' was more forceful than anything I imagined reading the novels." The roundup is full of fans calling it a kamikai, fan shorthand for an all-timer episode, with one viewer judging it "probably the densest 30 minutes of Re:Zero so far."
The Old Subaru Resurfaces
Before the archive showdown, the episode lands some smaller payoffs. Emilia sizes up the Book of the Dead scheme as a "zurukko" plan, a playground word for sneaky, and Subaru shoots back that nobody says that word these days. It's a throwaway retort, but it's pure Subaru. Emilia, who had quietly been hurting at being called "Emilia-chan" instead of his usual "Emilia-tan," finally breaks into a smile. Viewers celebrated that "the Subaru-isms are coming back."
Subaru also clears the air with Julius, who has been wounded twice over: forgotten by his friend, then beaten by Reid. Subaru's answer is blunt. "That's that, this is this." What Julius lacks isn't courage but the will to win, and Subaru hands him the entire Reid fight on the strength of that trust. Fans savored the line, with posts like "Only a Subaru carrying different memories could say that" and "It's like their disastrous first meeting never happened. They're genuinely best friends now."
The episode stacks its cliffhangers high. While Subaru faces Louis, a horde of witch beasts storms the tower, Shaula's group gets overrun, and Louis's older brother appears. Subaru cuts through Louis's temptation and heads back into the chaos, but the episode makes clear she still has cards left to play.
Looking Ahead
Episode 80 airs Wednesday, August 26 in Japan. The Recapture Arc is an eight-episode run that began August 12, following the 11-episode Loss Arc that premiered April 8 on TOKYO MX, AT-X, and stations nationwide. WHITE FOX produces the season, with Masahiro Shinohara directing and creator Tappei Nagatsuki supervising the scripts.
Internationally, Crunchyroll streams the fourth season, so overseas fans can watch the Rem scene everyone in Japan is posting about. For anyone who wants to read ahead, Yen Press publishes Tappei Nagatsuki's source light novels in English.