Born to Katherine Noire and a never-to-be-named Mister Welsh, a CEO of an expanding bakery chain throughout Saucony and beyond - Celeste has lived a dominantly pampered life in her mother's home following the divorce. Celeste remembers precious little of her time down south, and had grown a few years in Minnesota with her maternal grandparents and her mother before eventually moving to New Jersey: which resulted in nothing particularly southern being about the girl. She was often a target for bullying, so moving from place to place and transferring from school to school was often a thing until her mother finally landed a stable enough job to become a respected member of the city commerce. Celeste is rather well-treated within town, but is often still bullied for genes (amongst other things). People find it easy to make fun of her because of the lack of friends that she possesses, her first friend in turn was her older brother Jordan (whom in turn after the divorce became rather estranged from her).

The bullying is a sore subject for Celeste, as it ranged from anywhere to the harshest of insults, to even multiple forms of abuse. She initially kept quiet about all of her issues with students because she was so intimidated to talk to anyone (likely from fearing retaliation from her bullies), although she eventually made her first friends despite her very timid and passive behavior. These friends were Allen Cross and Blair Lockeheart and have in turn, helped keep her company and give her advice during Middle and High School due to her lack of social interaction from being in a sheltered lifestyle. She's here in Saucony to have a more positive time than her previous moments in Elementary and early Middle Schools.

Timid and a nervous wreck to a sometimes exploitable fault, Celeste sometimes stutters and finds it hard to convey to others on how she really feels about situations at hand. She also apologizes for things that may not even be her fault, and can be easily intimidated into keeping quiet of the bullying done to her. This has partially changed this year, although she's more or less remained the same. To strangers, it's almost like she's mute by choice. To her friends on the other hand, she's drastically different. She's colorful and cheerful, usually possessing that of a smile onto her face that would speak extraordinary kindness. To most, they wouldn't suspect that she suffers from occasional severe depression which had used to be chronic (with the only one aware being Katherine).

Of course, this sort of mindset gives Celeste unwanted attention. Dominantly with people either harassing her, or white knighting her to expect something in return. To those on the internet, she'd be termed as a "Precious Cinnamon Roll". To the Otakus, she'd be a "Moe". She'd rather prefer the former than the latter, personally. Speaking of Cinnamon Rolls, however: Celeste has a fondness for sweet foods, particularly pastries - although this is sometimes sated while ignoring the food triangle. Amongst her occasionally unhealthy eating habits and eccentric, gentle personality, Celeste is unstrikingly loyal to her friends: Which can reach far beyond the scope of what people could see as Celeste's limit as a person, where she'd stand up for others more than she could ever hope to stand up for herself. This means that any friendship she has could more or less be sentimental for her.

As a last part, Celeste is super conscious about her body image, sometimes failing in upkeeping it. Although her friends have slowly worked on alleviating that sort of mind process in her.