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"I... I miss everyone. I just want to go back."
– Rho to Alpha

Rhosaith is a Time Specter that originated in the Undertale Rho universe. She has the ability to travel between timelines, through time and the Undertale Multiverse. Though her tactic of traversing dimensional space is so powerful that she isn't restrained to simply traverse the Undertale Multiverse like Error!Sans or Core!Frisk are. Rhosaith possesses a fleet of more that a trillion spaceships and a total crew of somewhere in the septillions. Rhosaith sees Alphasaith as a good friend, and someone that she can talk to when feeling conflicted.


Though she used to be quite perky, ever since she was taken by the [redacted], she has been quite somber. She was forcefully taken from her friends and family just like every other time specter and is now working as one of the most powerful creatures in existence. Rhosaith loves classical music. Her favorite artists are Beethoven, Tchaikovsky, and Mozart.


Rho always has a black trench coat on along with a strangely shaped gas-mask with a black Kodiak hat. Rho also wears blades around her legs like a type of metallic skirt, she is capable of unsheathing them and attaching them to her blade handle that she keep on her right thigh.


Rhosaith has extreme amounts of power, so much so that it is difficult to begin to pretend to fully appreciate how much she is capable of. She has been referred to as a god on multiple occasions, even though she absolutely hates it. She is also the only one in the Undertale Multiverse powerful enough to counter The Eternal Worm.


Rhosaith carries around what is basically an energy shield that repels strings. How it works is its basically like putting two like ends of a magnet together.



Rho is extremely eccentric and overly joyful in a joking manner around Error!Sans. While Rho and Error!Sans occasionally conflict in points of view, they sometimes find something they both agree on. Rho likes to play on Error!Sans's Haphephobia by teleporting behind them, grabbing them, then teleporting out of the way before Error!Sans can react. Rho is more than capable of infiltrating any Anti-Voids, including Error!Sans's, so the surprises are normally at extreme effects. Error!Sans is also incapable of using his strings to tie up Rho. This is due to the fact the Rho has developed a type of "energy shield" that causes the strings to repel away from her. When they are passive towards each-other, they tend to simply talk while they both knit. Due to Error destroying one of the universes within the Undertale Rho Universe, which is now located within The Rho Exclusion Zone, Error tends to feel very nervous around Rhosaith.

Ink!Sans (Still Outdated)


Rho and Ink are primarily neutral towards each-other. They try to stay out of each-others way. Though when they do meet, It's not always the best of circumstances. They have fought multiple times, occasionally ending in stalemate, though their fights normally end because they both just give up and go on their ways.



Rho and Core!Frisk generally get along. Rho was actually the first one to "accidentally" stumble across the Omega Timeline. Starting when Rho had discovered the existence of the Omega Timeline, She really wanted to find a way to get their (as her conventional way of travel couldn't get in for some reason). While she was researching a way to get in, she found nothing. After a while, Rho grew tired. As she was heading towards the door, all she could think of was the Omega Timeline, and how great it would be to go their. When the door opened and Rho had walked through, she had found herself in the Omega Timeline. Rho and Core!Frisk talk often, Rho tells Core!Frisk about the universes beyond the Undertale Multiverse and Core!Frisk tells Rho about what is happening in Universe Rho. Rho tends to refer to Core!Frisk as Schrödinger due to the fact that Core!Frisk is technically neither alive nor dead.[1]

Alpha!Sans (Done by SHADIKAL15, Creator of Alpha!Sans)

After getting past Alpha!Sans's shy side, they would make great friends

Error404 (Done by SHADIKAL15, Creator of Error404)

Error404 and Rhosaith would have a love hate relationship (Error404 being the hate and Rhosaith being the love). They would try to kill each other, but would also hang out on occasion or at any chance they get.


Something to do with Rhosaith mounting Infected's skull on a pike and launching it into the nearest supernova.



S.T (Done by UndertaleAUwikipersonandthings, Creator of S.T)

Occasional teammates and a trust is between the two



Broken!Science Sans

The two are occasional partners in balancing the Multiverse. Broken has fascination in the fact of her ability to travel across the Multi-Multiverse. Mainly since her origins are unknown to him, and the army she has gathered. He is also interested in the other worlds that exist that aren't even alternate universes. However, he does have a small annoyance toward Rho due to her relations with Error, though is alright with putting them aside. Sometimes. It is unclear about how Rho feels toward him.


She finds one, interesting. She finds his ability to see every reality interesting and occasionally calls him for assistance. They are also good friends, Samuel often hanging around the Rho Zone and sleeping in the library


Rho and One butt heads often, but she considers One a intellectual equal. She is also curious of certain deals One has made with other multiverse beings, she also is curious of One's ability to negate attacks with her understanding of things, but is limited on her ability to observe her due to a deal made between them.





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