
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, this is shown when she is able to manipulate Hifumi to make her royal milk tea and further be her accomplice during Chapter 3. She is shown to be fairly intelligent, referencing several aspects of game theory such as Prisoner's Dilemma or ZeroSum Game, and her manipulative and coercion,is a very ambitious

Manipulative,extremely selfish,Liar

normally has a quiet and sleepy disposition, but becomes a lot more lively when discussing games and concentrates hard when playing. has a number of unusual habits, such as dozing off while playing games and taking long pauses during conversations to think about everything wants to say, sometimes even sleeps while standing and forgets to breathe when playing games. also quite often uses gaming terms and references. occasionally a bit playful and tries to make jokes or play little pranks on Hajim