Celestia Ludenberg

As an experienced gambler, Celestia appears collected, cold, and cunning by nature. She possesses the ability to manipulate others to do her bidding and can lie with a perfectly straight face. She is shown to be fairly intelligent, referencing several aspects of game theory such as Prisoner's Dilemma or Zero-Sum Game, and her manipulative and coercion skills are shown in arguments, being able to deceive the majority of her partners.

Celestia is a very ambitious person, as she declared that she will do anything it takes to win and is ready to go as far as murdering someone or manipulating others in cold blood. She is extremely selfish and values her life over the lives of others, stating she has no problem sacrificing others in order to save herself. She also has a lot of pride, refusing to surrender no matter how far into a corner she's pushed, as long as the chance for victory remains. However, when confronted with complete defeat, Celestia preferred to surrender gracefully over dragging out the inevitable.

Celestia believes in adaptability to be the key to survival, rather than strength or intellect, and she acts upon this by setting up protective measures for both others and herself. She often reminds others to obey these measures and is often annoyed when people violate them, showing her authoritative and commanding nature and coldly remarking that people who disobey the rules pay the price. In reality, she was lying about having to adapt and more than anyone wanted to win, showing how easy it is for her to hide her emotions.

Celestia's mannerisms are strict, refined and her spoiled nature emphasizes this due to her aspiring to be like European royalty. She even has a habit of ranking people between Rank A and Rank F, with her not caring for anyone who is a D-rank and despising those who are F-rank. She despises her real self as she dislikes ordinary and common things and considers her real identity and name to be one of "a loser". She speaks softly and smiles often in order to imitate Victorian mannerisms and etiquette as a lady. However, her short temper surfaces when something fails to go as well as she expects it to, often shouting and denying accusations towards her with unusually rude mannerisms, often using vulgar language.

As the Queen of Liars, Celestia claimed that she can even fool her own emotions, but this doesn't seem to be entirely the case. She appears to lack empathy and claims that she feels no guilt for the nefarious acts she committed in the gambling underworld, although like most things regarding her, the truth of this is in question. Despite her status as a consummate liar, she can also feel fear, which she often hides with a smile. She has a habit of deceiving her own emotions and so even in defeat always keeps a constant poise.