Luna is one of the residents of the American colony.
Luna is a slender young woman of average height who has somewhat wild, short blonde hair with a few locks long enough to cover her left eye, similar to Ginro. She has a small bust but extremely wide hips and is considered to be very attractive by Carlos, Max, Mozu, and several others.
For clothing she wears a striped, form-fitting short backless dress and a choker with a star on it. She also has a pouch wrapped around her left thigh and a pair of thigh-high boots with heels. Her petrification scar takes the form of a star-shape on her lower back.
Not much is known about her, though she is shown to be quite timid.
Luna seems to have a disposition against murder as she questioned Stanley if he was really going to kill someone. However she was silenced with the glare from him and proceeded to support him in his endeavor.
She later mentioned that her type of man is an intelligent hard working man with conviction to match. True to word, while she believed Taiju to be their head scientist, she didn't feel attracted to him but instead felt attracted to Senku.
Despite being asked to find out which passenger was Dr. Taiju, she came up with a romanticized version of him that didn't fit him and didn't notice he wasn't the scientist after interacting with Senku, who made no qualms of hiding his intelligence when he used science to make soft serve ice cream to tempt her. However, she has slowly become suspicious of him after hearing of his association with Xeno.
Luna is shown to have great persistence keeping herself awake for thousands of years.
Prior to the petrification event, Luna appeared to have been an heiress and was always tended to by Carlos and Max. Back in the day before the science expo, she became a student for medical department thanks to her father’s connection, despite the lessons being sometimes difficult to her, but it paid off. One day at a science expo, Luna was petrified along with the rest of humanity. Luna retained consciousness by refusing to die single and persisted for over thousands of years. 
After her revival, Luna at some point became an employee of Dr. Xeno.
Luna accompanied Stanley along with Carlos and Max through the forest. Luna questioned Stanley on whether they should trust Gen Asagiri but Stanley explains his mistrust of Gen, something Luna hurriedly agrees on. Luna then deals with Carlos and Max, shrugging off their advances before Stanley tells her that she has to preserve her strength because she has a role to play. Luna is obviously confused but continues to journey with Stanley. After gathering a good vantage point, she catches a glimpse of the Perseus and remarked that the science leader is nothing to Xeno. Luna questions Stanley if he really intends to kill the leader in Stanley confirms it was glaring at Luna when she tries to question him on why. Moving the questions further, she asks why he needs her. Stanley explains that he will send Luna to spy on the Kingdom of Science to draw out the science user for him to snipe him. Luna hesitantly agrees and gets her self battered up, to give the illusion that she needs help. Luna then makes her presence known to the crew, begging for after escaping Xeno before Senku approaches her and helps her. She is seemingly awestruck to look at him while the rest of the crew observe the scene.
Now on the Perseus, Luna started to work out who the Scientist is. Luna notes to herself on what type of man he is, believing that he might be an intelligent hard working man with conviction to match, her exact preference. Luna then eliminates a few candidates out before Yuzuriha casually says Taiju's name and the latter reveals himself. Luna is flabbergasted to find Taiju, who is not what she expected of a head scientist. However, she begins to ponder how to lure him for Stanley to eliminate. As she does, she realizes that she didn't feel attracted to him but instead felt attracted to Senku whose nature surprises her and he makes no qualms of hiding his intelligence like when he used science to make soft serve ice cream to tempt her. Luna is surprised and states if Xeno was present he would say the word Elegant. She’s particularly shocked when Senku reveals that Xeno was his science mentor. 
Pondering on Senku's past association with Xeno means, Luna notes on her possible attraction to Senku and attempts to eavesdrop on his conversation with the others. However, Taiju's yelling makes her recall her goal of having him assassinated. She tries to signal Stanley but after hesitating for a while she is unable to because of the kindness the crew showed her. Luna then decides to notify her comrades of Senku having a connection to Xeno.