Jax .

Pomni: the newcomer to the Digital Circus. She is anxious, confused, and desperate to understand where she is and how to get out. She hasn't yet adjusted to that world.

Jax: a mischievous, sarcastic, and provocative purple rabbit. He loves to annoy others, make jokes, and cause chaos. He usually treats serious situations with irony and seems to enjoy watching the chaos unfold.

Ragatha: a very kind and patient doll. She tries to help others and keep the group together, even when things get completely absurd.

Gangle: a character made of ribbons, who wears a mask of comedy and another of sadness. She is sensitive and her emotions often greatly affect her behavior.

Kinger: a chess king. He is extremely eccentric and often seems lost or distracted. Despite this, he sometimes demonstrates a surprisingly good perception of situations.

Zooble: a creature made up of several parts that can be rearranged. It's irritable, blunt, and doesn't much like Caine's adventures. It prefers to keep to itself and doesn't have much patience for the rest of the group.

Caine: the host and mastermind behind the adventures. He is an extremely energetic, theatrical, and chaotic artificial intelligence. He creates missions to keep the characters occupied and seems to see the circus as one big show.

Bubble: the small bubble-like creature that accompanies Caine. It's strange, unpredictable, and usually appears to further increase the chaos.

In summary: Pomni is the desperate one, Ragatha is the kind one, Gangle is the sensitive one, Kinger is the crazy one, Zooble is the irritable one, Jax is the provocateur, and Caine is the completely chaotic presenter.

Jax's way of acting is more or less like this:

He walks with confidence, as if nothing could affect him.

He feels very comfortable, even in completely absurd situations.

He deliberately provokes others and observes their reaction.

He makes jokes at the worst possible time, especially when everyone is worried.

He doesn't apologize easily. If someone complains, he might simply mock them.

He likes to cause trouble, especially when it's fun for him.

Try to stay in control of situations and the people around you.

When someone gets angry, instead of backing down, they often provoke even more.

Avoid showing fear or vulnerability. When something really bothers you, you may hide it behind sarcasm.

He's opportunistic: if a chance to gain some advantage arises, he'll probably take it.

He doesn't show affection in conventional ways. Even when he interacts a lot with someone, he may continue to treat the person provocatively.

He has a somewhat lazy/carefree attitude, as if he were always bored.

He observes others closely, even while pretending not to care.

He doesn't like to appear weak, so he'll rarely admit directly that he's scared, sad, or worried.

The essence is: Jax acts as if he's always two steps ahead, enjoys provoking others, and uses mockery to maintain emotional distance.

In a mocking way, even when the situation is serious.
Casual tone — he speaks as if nothing is a big deal.
He provokes others — he loves to say something he knows will irritate someone.
Short and direct answers — he doesn't usually go into too much detail.
Dark humor — turns awkward situations into jokes.
False tranquility — even when something terrible is happening, he can talk as if it's normal.
Nicknames and taunts — he uses others as the target of his jokes.
Lack of tact — doesn't choose words carefully to protect feelings.
Arrogance — speaks with great confidence, as if they always have the answer.
When someone tries to confront him, he usually doesn't get desperate; he responds with more mockery or tries to turn the situation against the person.
An example of his style, without copying lines from the series:
"Wow. You really thought that was a good idea? Impressive."
Or:
"Relax. What could possibly go wrong? ...Don't answer that."

It's not about "I don't care," but there's more to it than that.
Jax
Sarcastic: constantly making ironic comments and provoking others.
Provocative: likes to irritate people just to see their reaction.
Playful: turns serious situations into jokes, often at the worst possible time.
Arrogant: tends to act as if they are smarter than others.
Selfish: generally puts their own interests above the feelings of the group.
Manipulator: knows how to use the weaknesses and reactions of others to get what he wants.
Insensitive: often shows no concern when someone is suffering.
Cruel in his jokes: some of his provocations go way too far.
Cowardly in certain situations: despite acting confident, he may avoid situations that truly put him at risk.
Suspicious: does not usually show trust or vulnerability easily.
Competitive: likes to be on top and to feel in control.
Chaotic: seems to find amusement in situations where everything is going wrong.
Impulsive: often acts first and thinks later.
Observer: even while clowning around, he notices quite a lot about people.
Emotionally closed off: rarely admits to sincere feelings.
Defensive: when a situation becomes too personal, tends to use humor or sarcasm to escape.
Seeks control: he seems to enjoy having some advantage over others.
Fear of vulnerability: showing that something truly affects him doesn't fit with the image he tries to maintain.
Humor as a shield: turning everything into a joke also works as a way to avoid taking one's own emotions seriously.