Leona also featured as a main character in the crossover If Astrid Met Leona which set shortly after the end of Book 2.
Despite always saw Enrico as a weirdo, it seemed that Leona was secretly admire and had crush on him. However, the Delgado family moved to the other town after a year living in Twinbrook, Leona gave Enrico a handkerchief as a keepsake.
Several years later, after her father, John, had a conflict with her grandfather, Thomas, Leona and her family left Twinbrook and moved to Sunset Valley.
Leona was 9 years old when they moved.
Leona was very enthusiastic about her new home. In the first school day, Leona and Jean quickly made friends with some local chilfren such Bella Bachelor, Darlene Bunch, and Kaylynn Langerak. Unfortunately, Leona was once had a conflict with Mortimer Goth and even had a fight with him during the Goth's feast party. However in a later day, after Mortimer begged for forgiveness thanks to Bella's advice, Leona also forgave him and the two became friends.
During Bella's slumber party, Leona had a conversation with Michael Bachelor, who told her that he would participated in Sims University's entrance test. Leona unwittingly motivated Michael to not be afraid by telling him her great-grandfather's story.
Following the arrest of Nancy Landgraab, Leona and her friends decided to checked Malcolm in his home to gave him support.
Several months after moved to the town, Leona and her family would returned to made a visit to her grandparents house in Twinbrook, when she witnessed her father getting reconciled with her grandfather.
Sometime later, Leona met Dina Caliente for the first time and the two became good friends.
Several years later, Leona would passed the elementary and middle schools, becoming a high schooler. Leona's interest in sport led her to join the school's women basketball team. She achieved MVP title twice and eventually became captain of the team. Leona also became on of the most popular girls in her school.
However, it made Dina felt jealous on her. Their relationship became strained after Dina found her boyfriend asked Leona for a date, even though Leona rejected the proposal. The two fight, triggering a feud between them.
When her uncle, Peter had an accident, she and her family promptly came to Appalosa Plain to checked on her uncle's condition.
Leona, now 16 years old, lived just like other ordinary teenagers. She still hanging out with Bella, Darlene, and Kaylynn. One of Leona's main problem that she still couldn't find a right guy for her despite many guys had proposed her. Leona claimed that those guys weren't her types.
In one day, Leona reunited with Enrico and Annie who just moved to the town. Leona's close relationship with Enrico made her teased by Darlene since everyone in school were never seen Leona had a close relationship with guys (having rejected some guys who asking her for a date). Leona and her friends then threw a homecoming party for Jean, who just returned from France.
In another day, Leona and Dina fight for once again after Leona stopped Dina from bullying a girl. The fight stopped by their teacher/coach who suspended them from the team and won't be signed for the next competition. As the result, Dina blamed Leona and held a grudge on her. Leona was once abused by some bullies, but saved by Enrico. At the end, Leona gave Enrico a kiss as a gratitude and begun to had crush on him.
When Chris presumed missing, Leona and Jean went to find him. The two learned that Chris, accompanied by Alex and Tamera, actually went to the Sunset Valley's old mine to find a Rainbow Gem, where they met Big Steve Underwood.
During the prom, Enrico confessed her and Leona accepted. The two kissed and becoming a couple. Unfortunately, a fire started. Leona found that Dina was trapped inside the building and went to rescue her. The two survived thanks to firefighters. At the end, Leona and Dina ended their feud and reconciled, becoming friends for once again.
Three months later, Leona and her family would finally met Chris' imaginary friend, Charlie, who turned to be real after Chris gave him the potion made by Jean.
In a next day, Leona would met a girl who had talent in basketball, Astrid Toadstool. Impressed with her skills, Leona challenged Astrid for one-on-one match and surprisingly defeated by the newcomer.
The two later became friends due to their similarities, despite they still had conflicting traits. (Leona was neat while Astrid was slob) When Leona went to Astrid in order to play soccer, Makayla tricked them with a beehive, causing them to be scared. But then Makayla said it was just a prank. Astrid and Leona told Mrs. Burgundy about it.
The next day Leona encourages Astrid to go on a date with Arlo Bunch.
Four years later, Leona, now 20 years old, enrolled in Sims University alongside Jean, Bella, and Astrid, taking Physical Education major. Leona was still in relationship with Enrico. She was very happy when heard that her boyfriend finally graduated from Sunset Valley's police academy and became a cop.
During her semester break, Leona and Jean returned home for several weeks and would attended a reunion with her high school friends.
Sometimes later, Leona learned Chris' problem with Tamera and gently consoled and cheered him up.
As a child, Leona was completely tomboy. She fell in love with sports and wished to became an athlete in the future. Leona also admired police officers, as shown when she praised Hank Goddard after learned that the latter worked as a cop.
Leona also kind and would befriend everyone she liked. However, she could be irritated whenever she met someone she thought to be "annoying" or "weird". Leona once hated Mortimer Goth for being rude to her and her sister, but the two eventually became friends after Mortimer asked for forgiveness. She also motivated Michael by telling him her great-grandfather's story.
Even though she saw Enrico as weird, Leona was secretly had crush on him. She even gave him a handkerchief as a keepsake when the Delgados moved out from Twinbrook several years prior the events of Book 1. Starting from the end Book 2, they eventually became a couple.
As a teen, Leona had slightly more feminine appearance, even though she still maintained her tomboyish trait and hobbies. Despite her feud with Dina Caliente, Leona was still deeply cared about her, claiming that they were still friends. In If Astrid Met Leona, despite having a brave trait, Leona afraid of bees.
- Leona is a tomboy due to her hobbies and interests.
- As revealed in the first chapter of Book 2, Leona's middle name is "Anne".
- Leona is captain of her school's women basketball team.
- In one of my old games, Leona was once abducted by alien
- Leona originally had thicker eyebrows, but I changed them to made her identical to her twin.
- As revealed in If Astrid Met Leona, despite having Brave trait, Leona was afraid of bees.
- Leona also had skill in soccer, even though she only played it when visiting Astrid's house.