Re:Zero Season 4 Part 2: Meili Portroute’s Betrayal and the Shocking Truth Behind the Pleiades Watchtower Mystery
For years, Re:Zero has built its reputation on making viewers question everything they think they know about its characters. Heroes become monsters, villains earn sympathy, and every victory comes at an unbearable price. But after watching Season 4 Part 2, I honestly think no character has benefited more from this storytelling philosophy than Meili Portroute.
Going into the Pleiades Watchtower arc, I expected another brutal mystery packed with deaths, psychological games, and Subaru suffering in ways that only Re:Zero can deliver. What I didn’t expect was to walk away feeling that Meili—someone introduced as a child assassin—might be one of the series’ most tragic victims.
The latest episodes don’t simply reveal another shocking betrayal. They force viewers to reconsider everything they believed about trust, memory, and identity.
Meili Was Never Just “The Assassin Girl”
One thing I love about Re:Zero is how it refuses to leave characters trapped in their original roles.
When Meili first appeared, she looked like another dangerous operative connected to Elsa and the assassin network. It would’ve been easy for the story to keep her as a recurring villain.
Instead, the series quietly transformed her into something much more interesting.
By the time the Emilia Camp reaches the Pleiades Watchtower, Meili isn’t fighting alongside Subaru because she suddenly became a hero. She’s surviving because she literally has nowhere else to go.
That subtle distinction matters.
She carries years of abuse, manipulation, and emotional damage, making her loyalty incredibly fragile. Subaru is one of the first people to treat her as a child instead of a weapon, but trauma doesn’t disappear simply because someone offers kindness.
That’s exactly what makes everything that follows feel so heartbreaking.
Subaru’s Amnesia Changes Everything
The biggest turning point of Season 4 Part 2 isn’t a battle.
It’s Subaru forgetting who he is.
Without his memories, Subaru loses every relationship that defined him:
- Emilia becomes a stranger.
- Beatrice looks suspicious.
- Rem is someone he barely recognizes.
- Meili becomes another possible threat.
From Subaru’s perspective, everyone around him could be lying.
But here’s the part that hit me hardest.
Meili immediately notices the difference.
She’s spent her life reading people’s intentions in order to survive, so she realizes almost instantly that this isn’t the Subaru she trusted.
That creates one of the most uncomfortable dynamics in recent anime because neither side truly understands what’s happening.
Both are terrified.
Both think the other might attack first.
Was Meili Actually Trying to Betray Subaru?
This is probably the biggest debate among anime fans right now.
After the staircase incident, social media immediately split into two camps.
Some viewers insist Meili betrayed the Emilia Camp.
Others argue she was acting out of pure fear.
Personally, I think the second interpretation makes far more sense.
Everything we’ve learned about Meili points toward survival instinct rather than calculated betrayal.
She isn’t trying to help the Witch Cult.
She’s trying not to become disposable again.
That’s a huge difference.
Her actions are undeniably dangerous, but they’re driven by panic—not ideology.
Once you remember how she was raised, her paranoia suddenly becomes understandable, even if it isn’t justified.
The Murder Mystery Completely Changed the Tone
Then comes the moment that completely blindsided me.
Subaru wakes up.
Meili is dead.
His fingerprints are effectively everywhere.
A disturbing message appears on his own body.
For a few minutes, the series genuinely convinces viewers that Subaru may have become a killer.
That’s an incredible piece of psychological storytelling because Re:Zero weaponizes uncertainty better than almost any modern fantasy anime.
Instead of asking:
“Who killed Meili?”
The show asks something far more disturbing:
“Can Subaru even trust himself anymore?”
That question lingers long after the episode ends.
Louis Arneb Is More Terrifying Than Pure Evil
I’ve always thought the Sin Archbishops were frightening.
Season 4 somehow makes Louis Arneb even worse.
Rather than relying on overwhelming power alone, Louis attacks identity itself.
Instead of defeating Subaru physically, she tries to convince him that his own existence is monstrous.
That’s psychological horror at its best.
Her manipulation creates several layers of confusion simultaneously.
| Event | What Subaru Believes | What Is Actually Happening |
|---|---|---|
| Memory loss | He simply forgot everything. | His identity has been compromised. |
| Meili’s death | He murdered her. | Louis manipulated events from within. |
| Strange messages | His past self is evil. | Louis is deliberately breaking his mind. |
I really appreciate that the story doesn’t rely on a cheap “surprise villain” twist.
Instead, every revelation deepens Subaru’s emotional collapse.
The Book of the Dead Is One of Arc 6’s Best Ideas
If I had to choose the strongest emotional sequence so far, it wouldn’t even be the murder mystery.
It would be Subaru reading Meili’s Book of the Dead.
Watching—or rather experiencing—another person’s entire life is such a uniquely Re:Zero concept.
Instead of telling viewers that Meili suffered, the story forces Subaru to live through it.
He feels:
- Abandonment.
- Fear.
- Loneliness.
- Manipulation.
- The desperate desire to belong somewhere.
By the end, Meili stops feeling like a former antagonist.
She feels like another child destroyed by the world’s cruelty.
That’s the moment where the entire arc clicked for me.
Why Fans Can’t Stop Talking About These Episodes
It’s easy to understand why anime communities have exploded with theories.
The Watchtower arc combines nearly everything longtime Re:Zero fans love:
- Psychological horror instead of traditional action.
- Mysteries that reward careful attention.
- Morally gray characters instead of clear heroes and villains.
- Timeline manipulation that constantly changes expectations.
- Emotional payoffs built across multiple seasons.
I’ve also noticed newer viewers asking why Subaru trusted Meili at all before reaching the tower.
That’s actually one of the strengths of this adaptation.
It encourages people to revisit earlier arcs and appreciate how much groundwork was quietly laid years ago.
Not every answer arrives immediately, and Re:Zero has never been interested in taking the easy route.
Final Thoughts
Season 4 Part 2 reminded me why Re:Zero remains one of the most emotionally exhausting fantasy series in anime.
The Pleiades Watchtower isn’t simply another dangerous location filled with monsters.
It’s a place that strips away certainty.
Friendships become suspicious.
Memories become unreliable.
Even Subaru himself becomes someone we hesitate to trust.
As for Meili, I no longer see her as the child assassin introduced years ago.
I see someone desperately searching for a place where she doesn’t have to be afraid anymore.
Whether Subaru can ultimately save her isn’t just another plot point—it’s become one of the emotional cores of the Watchtower storyline.
If the remaining episodes maintain this level of psychological tension and character writing, I think Arc 6 has a real chance to be remembered as one of the finest arcs Re:Zero has ever adapted.
