Luna Valente (born Sol Benson) is the titular character of Soy Luna. She is a sweet and kind girl from Mexico who loves her family and friends. With talent and determination, she can do anything she puts her mind to. She is the daughter of Lili Benson and Bernie Benson, but was adopted by Mónica and Miguel Valente at the age of 2.
Luna is simple, sweet, determined, kind, authentic, and unafraid. She has a good heart but gets distracted sometimes. Her passion is skating, but she also enjoys singing and dancing. She values her family and her close friends. Luna tries to be nice, but can sometimes get annoyed.
Luna was born as Sol Benson, daughter of Lili and Bernie Benson. She’s Sharon’s niece and Alfredo’s granddaughter. Sol spent her first two years living in the Benson Mansion with her parents and her aunt. She was loved and adored by everyone. The little girl became an orphan at a young age when her aunt accidentally started a fire in the mansion and Sharon and Sol were the only survivors. The young Sol survived thanks to Roberto Muñoz, one of the household's staff members who saved her. In the process of getting out of the quickly burning house, Sol lost one half of her locket, which Roberto later kept. Roberto brought the young girl to Mexico City where she was adopted by Miguel and Mónica Valente, who gave her the new name Luna, after the locket, she wore around her neck.
Due to her young age when being adopted, she only has very few and vague memories of her life as Sol, and considers Miguel and Mónica as her real parents, since they are the ones who raised her. One of the earliest recollections she has is watching her mother Lili drawing a picture with the phrase "There is always a light to guide you. The sun will always rise again."
Luna is a teenage girl who works at Foodger Wheels with her best friend Simón Álvarez. In her free time, she loves to speed skate around Cancún, which makes her feel free and uninhibited. Near the end of school break, the wealthy Sharon Benson visits Cancún with her goddaughter, Ámbar Smith, and Ámbar's boyfriend Matteo Balsano. En route to deliver food to Ámbar, Luna runs into Matteo on the streets, and they begin to flirt. He aptly begins to call her Chica Delivery. After she continues on, she meets Ámbar and spills food over her swimming attire. Ámbar immediately takes a disliking to Luna, and trips her, making Luna fall into the pool. Matteo jumps in and saves her from drowning, making Ámbar jealous and solidifying her hate towards Luna. On the same day, Sharon makes an undeniable job offer to Luna's parents, forcing the Valentes to relocate to Buenos Aires, Argentina.
In Buenos Aires, Luna's life is turned upside-down. She is introduced to freestyle skating at Jam & Roller, a form of skating that puts dancing on wheels. She meets her new best friend Nina Simonetti here and receives a new job as a rink assistant from Tamara. Luna also now attends an elite private school named Blake South College, with Ámbar, Matteo, Nina, and her new friends Jim and Yam. In addition, Luna must live with her enemy Ámbar in the cushy, Zona Norte Benson Mansion. Ámbar is dead-set on ruining Luna's life and schemes against her by sabotaging her skates, switching her assignments at school, and locking her up in a room at Blake. Luna stays in touch with Simón but continues to miss him more and more. Her saudade is soon put to rest when Simón packs up and moves to Buenos Aires to be closer to Luna. With Simón, Luna performs in her first Open Music and competes in a freestyle skating competition at Jam & Roller. At Blake, Matteo continues to flirt with Luna while still being in an on-again-off-again relationship with Ámbar. At an Open Music, Matteo even replaces Ámbar with Luna as his singing partner when Ámbar fails to show up on time. Not only does this make Ámbar even more jealous, but it also makes Simón jealous, as he is realizing that he has romantic feelings for Luna, which Luna may reciprocate.
Simón and Luna make it all the way to finals in the skating competition, along with Matteo and Ámbar, and travel to Puerto Madero to compete. In Puerto Madero, Luna realizes her true feelings for Simón when she gets jealous when he goes on a date with another girl. They share a moment when Simón serenades Luna with "Eres" on a bridge. On competition day, Simón doesn't show up before the pair has to compete, forcing Tamara to pair Matteo with Luna instead. At the end of the performance, Matteo unexpectedly kisses Luna, shocking the audience, Ámbar, and Simón, who has finally shown up.
Luna and Matteo must face the aftermath of the kiss and Jam & Roller's loss at the competition. Luna is angry at Matteo for kissing her because she believes she has feelings for Simón. After witnessing the kiss, Simón feels like there is nothing left for him in Argentina, so he tells Luna that he's moving back to Mexico after the next Open Music. Luna desperately doesn't want Simón to leave, though, so she plans a big surprise for after the Open to ask him to stay. Tired of the same partners over and over again, Tamara creates a twist for the Open Music: the pairings for the Open will be random. Matteo, Simón, and Luna are paired together by chance, which creates many arguments between the trio, as Simón is still furious at Matteo. To make Luna happy, Matteo drops out last minute so that Luna and Simón can perform their last Open together. After the Open, Luna shows Simón her surprise, and he chooses to stay.
Simón soon reconnects with his summer friend Daniela, once again making Luna jealous. To push Luna further apart from Simón, Daniela claims that Luna pushed her down and injured her. When they begin to date, Luna tries to expose Daniela's true colors and break the couple up. Simón eventually finds out the truth about Daniela and promptly begins to date Luna after they share a kiss. As they date, Luna begins to realize that she still only sees Simón as her friends and not her romantic partner. Simón sees this and breaks it off with Luna, promising that they can still be friends. When Matteo catches wind of this, he warms up to Luna once again, asking her to be his partner in the final Open Music of the year.
In the midst of all the drama, Tamara decides to enter Jam & Roller into another skating competition, but this time, instead of pairs, there are big groups. Luna heads a group of her own to combat Ámbar's team for a shot at the official Jam & Roller team. Luna's team ultimately loses, but everybody decides to merge the teams anyway, putting Luna in charge once again. Before finals, Ámbar destroys Jam & Roller's prop for their performance. An argument ensues, but the team makes do and Ámbar and Luna finally become friends after coming to an understanding. After the performance, Luna must rush to Simón's televised concert with his Roller Band. At the venue, Matteo meets up with Luna to say his goodbyes before leaving the country with his family. Matteo and Luna share a final kiss.