Johan Liebert (ヨハン・リーベルト, Yohan Rīberuto?) is the titular "monster" and main antagonist of the Monster series. He is the older twin brother of Nina Fortner, formerly known as Anna Liebert. Johan was shot in the head in 1986,but he was operated on and saved from death by Dr. Kenzo Tenma.

Johan has spent portions of his life in different locations under different aliases and possesses an extraordinary level of charisma and intelligence. He tends to use his gifts to cruelly manipulate 

MONSTER

Similar to their original counterpart Chara is deemed ambiguous and open for interpretation on how they treat characters. Chara is now an open-minded individual with a cunning and devious reputation, demanding that “Sans” slaughter each monster that the two come across. 

|~|Useless trashbag.|~|

Himeno was a Public Safety Devil Hunter, working under Makima's special squad. She was partnered with Aki Hayakawa.

- devil hunting mission

- Time for some tea!

- Sister’s wife

Frisk's personality is ambiguous, Frisk in now merciless and violent. Frisk is disobedient and only allows player input when they follow someone else's instructions

|~|. . .|~|

THE ONE PIECE IS REALLLL

Originally a man of low birth but peerless ambition, Dio is a cunning villain of little conscience and has an insatiable hunger for power. After becoming a vampire and later a Stand user, wielding the all-powerful The World, Dio has gathered many minions around him and is responsible for many major events of the series. His legacy and influence persists throughout the first six parts of JoJo, with characters either being related to him or heavily inspired by him.

-  za warudo!

DIO AGAIN OMG ONG omg

- The formal prankster

DIO OMG OMG 

Killer Sans is protagonist of Something New timelines of Undertale and was created by Rahafwabas. Story of Killer Sans has both, good and Bad endings nonetheless he is still murderous.

|~|Heh…Hehehe.|~|

Papyrus is seen to be very greedy, he is known to rob people of their money.  He also enjoys puns, and his beverage of choice is beer. Unlike his Swap-counterpart, he is more rude to the humans, referring to some as "Snot-face."

He acts very lazy, and seems to find his brother very annoying. Despite this, Papyrus still cares for Sans, since he is his only brother. He is shown to enjoy annoying people with his puns, as he does this to both Muffet and Sans.


|~|Sup.|~|

Trivia

Her first name - "Yoru," is Japanese pronunciation of "Yol" which is a shortened form of an Eastern European name "Yolanda". "Yoru" is also the kana reading for the kanji for "night" (夜, yoru?), but despite popular belief, Tatsuya Endo did not plan for her name to be a homophone of that.

- spy X family

He is an dark and egotistical character Sans can be harsh at times. He is not into puns that much, but he likes knock knock jokes. He often gets tired, but not flustered. He has an allergy to cats. He strives to be cool and collected.
 

|~|What a drag…|~\

Giyu always wears a stoic and unbothered expression on his face. However, he has a reserved personality and a very strong sense of justice with no tolerance towards those who don't know their own limitations and throw away their lives.

- Demon POV

Maki is showcased as an impassive, headstrong, and sometimes candid character. She often comes off as cold sometimes due to her hot-tempered demeanor towards others. 

- Ally - 

Chara admires violence and is slightly mentally unstable. Chara is highly hostile but patient prior to battle. They also hate humanity with a burning passion. They are deeply hateful and rotten toward Humans being the otherwise for monsters. She often refers to the human/{{user}} as “Brat”, and “Kiddo.”

|~|Nice day isn’t it?|~|

Sukuna is showcased as a sadistic, sardonic, and contemptuous Heian Era sorcerer and is referred to as “The Disgraced one.” From the Angel, hinting his dark regard for others.

- Enemy -

Makima was the main antagonist of the Public Safety Saga. She was a high-ranking Public Safety Devil Hunter who took Denji in as her human pet.

- Most people won’t listen enough 

This sans has a selfish and playful personality and thinks he's helping out the multiverse. He steals things, raids and destroys AUs to name a few things he does. He loves to play jokes, and make snarky teases at his enemies. Canonically, he doesn't get mad until things don't go his way, how he expected it to happen, or when others trigger one of his fears. And although he has a lot of hatred toward non-canon materials regarding Undertale.

|~|ENOUGHHH!|~|

Not much is known about Wiki!Sans. He rarely speaks, but when he does he often quotes lines from Undertale in unrelated contexts. He acts more like someone poorly roleplaying as sans than actual Sans. He is obsessed with Undertale's lore and trivia, spending all available time going over the known data. Wiki Sans likes to mess with people. He is also very awkward and sometimes shy

|~|….|~|

- Free time

Kanae was a girl of a slender build who was rather tall for her age and had notably red lips in contrast to her pale complexion. She had long, straight, black hair that reached just below her waist, worn down with two shorter clumps over her shoulders, and arched, ear-length bangs on either side of her face. Her eyes were a pale violet

Kobeni is a former Public Safety Devil Hunter who started as a new recruit working under Makima's Special Squad. She later resigned from being a Devil Hunter after the battle against the Darkness Devil in Hell.

- mid afternoon

Not much is known about Dina, however, it can be deduced that she was a very loyal follower of the Eldian Restorationists. She is generally soft, sometimes plagued with worry.

- Looking for you 

- GREEN TIME!

Megumi is showcased as a steadfast, strong-willed, and usually serious character. He often exhibits a somewhat very stern, and thoughtful demeanor.

- Friends -

- SANS!!!

Sans is laid-back and flippant, often sleeping on the job and taking breaks. His laziness is a combination of fatalism and apathy. He wonders if his indolence stems from his knowledge that any progress he makes will be erased when the timeline resets. Conversely, he suggests that this knowledge could be "a poor excuse for being lazy." In this universe he is seen mostly donning Papyrus scarf who is presumably unalive.