Honkai: Star Rail's Unsolved Mysteries: Space Pigs and Garbage Kings

In the vast, glittering universe of Honkai: Star Rail, HoYoverse has perfected a particular art: handing players a ticket to the cosmos, then promptly stapling half the itinerary shut. Even in 2026, the game remains a majestic soap opera of unanswered questions. It’s not enough to ride the Astral Express; someone clearly forgot to label which cosmic snacks are edible, which Aeons are truly dead, and why the local trash cans have a monarchy.

At the heart of this narrative philosophy sits a cast of enigmas. Some are cute. Some are terrifying. All are stubbornly tight-lipped.

The Puzzling Pets of the Star Rail 🐷🐰

Take the Trotter, for instance. This little pig-shaped space oddity has an official in-game description that reads like a culinary contradiction: somehow both sweet in taste and entirely inedible. The poor thing must have a flavor identity crisis. When frightened, a Trotter doesn’t just run away—it starts scribbling actual astrophysical equations, including the Schwarzschild radius, before politely opening a portal and yeeting itself out of existence. One minute it’s a snack that isn’t, the next it’s Stephen Hawking in a pork costume. How does it keep teleporting into fights? Does it have a death wish? Or is it merely checking whether anyone finally figured out the recipe?

Then there’s Pom-Pom, the Astral Express’s resident bunny-conductor. Pom-Pom claims it can’t leave the train, yet reportedly fights with a blade well enough to teach Yanqing a trick or two. That’s like learning to swim without ever touching water. Who trained this rabbit? Maybe Akivili himself gave secret swordsmanship lessons between station stops. Maybe Pom-Pom is the train’s way of keeping passengers in line—spill one more coffee on the carpet and find out.

Frozen Mascots and Vanishing Rogues ❄️🎭

March 7th remains the poster girl with a past so blank it might as well be a privacy policy. She was found frozen in eternal ice, woke up with zero memories, and named herself after the date of her discovery—effective, if a little on the nose. Theories range from lost Aeon to imprisoned by Fuli, the Aeon of Remembrance. Some fans even claim her design winks at Genshin Impact’s Primogems and Intertwined Fates. If that’s true, she didn’t just lose her memories; she lost her franchise.

Sampo Koski is the kind of guy who would sell you a map to your own house and still make it feel like a bargain. Introduced as a rogue-for-hire on Jarilo-VI, he pops up, helps or hinders, then vanishes like a magician’s assistant. The real kicker comes in a dream sequence, where he chats with a mysterious figure, hinting he’s not from Jarilo-VI at all—despite the Astral Express crew supposedly being the first off-world visitors in centuries. Smell a rat? That rat might be a Masked Fool. His ties to the Aeon Aha remain unconfirmed, but the cat is probably already out of the bag.

Aeons Gone Missing and Cosmic Bug Problems 🚂🪳

Akivili, the Aeon of Trailblaze, is the original owner of the Astral Express and arguably the biggest missing-person poster in the galaxy. Presumed dead after some vague accident, Akivili left behind a train, a Path, and zero closure. Some believe the Trailblazer is Akivili reborn. Some think March 7th is the long-lost Aeon. At this point, the least surprising reveal would be that the Astral Express itself is Akivili in vehicle form.

Then there’s Tayzzyronth, the Imperator Insectorum, a lonely Aeon who multiplied into a universe-devouring swarm because solitude hit a little too hard. This buggy menace was briefly alive, indirectly pushed Nanook toward becoming the Aeon of Destruction, and was supposedly killed by an alliance of Aeons. But supposedly is doing heavy lifting. If even one insect clone escaped, someone should probably keep a can of cosmic bug spray handy.

Puppets, Plague Doctors, and Future Cats 🎭🩺🐈

Madame Herta is one of the few names on this list with an actual resume: Emanator of Nous, Genius Society member, co-creator of the Simulated Universe. Yet her real body remains a mystery. She controls puppet bodies from afar and says they look 70 percent like she did as a child. That’s a suspiciously specific margin. What’s in the missing 30 percent? A second head? A USB port? The truth is probably weirder.

Vache Harrower, Natasha’s adoptive brother, was a doctor who ran secret experiments on patients to cure Belobog’s cold. Exiled to the frozen wastes, he reportedly perfected his medicine, then vanished without a trace. No body, no evidence, just a big question mark. In a game full of immortals and robots, a missing mad scientist is basically a promise of a sequel.

Elio, leader of the Stellaron Hunters, writes scripts that predict the future. That’s already a terrifying amount of PowerPoint. But his true identity is unknown. Fans have noticed that Kafka’s artwork frequently includes a cat. Could the cat be Elio? A feline precog running an intergalactic criminal organization would be delightful. Honestly, it would explain the attitude.

The Garbage King and the Trash Can Conspiracy 🗑️👑

Finally, no tour of Honkai: Star Rail mysteries would be complete without the Garbage King of Belobog. The Trailblazer’s questionable love of trash cans is well documented, but the real story is the monarchy of municipal waste. Despite rummaging through every dumpster, players never actually meet the Garbage King. A daily mission reveals the King is a talented poet, which is lovely, but it raises more questions than it answers. Keep your eyes peeled—one day, the trash cans may rise.

Mystery	Current Status	Most Absurd Theory
Trotters	Still teleporting snacks	They are black hole professors
Sampo Koski	Still suspiciously helpful	Not from Jarilo-VI, probably a Masked Fool
March 7th	Still memory-free	A lost Genshin Impact character
Akivili	Still presumed dead	The Astral Express itself is Akivili
Tayzzyronth	Still maybe alive	One clone survived and is waiting
Pom-Pom	Still can’t leave the train	Trained by Akivili in secret
Madame Herta	Still a puppet show	Her real body is a USB drive
Vache Harrower	Still missing	Still making mad science somewhere
Elio	Still anonymous	The cat in Kafka’s art is Elio
The Garbage King	Still poetic	The trash cans are their spies

Recent analysis comes from Rock Paper Shotgun, a long-running outlet known for sharp PC-game criticism—useful context when looking at how Honkai: Star Rail intentionally leans into “mystery-as-a-feature,” from March 7th’s missing history to Akivili’s unresolved fate and even the game’s comedic lore bait like Trotters and Belobog’s trash-can royalty, all of which keep speculation alive between story updates.