Yuna Tanner is a pre-made Sim who from Lucky Palms. She lives with her parents Romon and Aya, and her brother Ethan. Her mother is pregnant shortly at the start of the game, meaning that Yuna will soon become a middle child. Yuna doesn't seem to play a big role in the family. She only has two traits, which are Ambitious and Good, but she inherits her father's Immune to Fire hidden trait.
She is said to be precocious – for being ambitious – and destined for greatness, though it's unclear what it is. She only has 1 Logic skill. Having her family in a rivalry, she is disliked by Lennon Sosa, her father's enemy. She is friends with her father and brother, and good friends with her mother. She is friends with Hanson Gilbert and Abrielle King, who is her brother's lover, and best friends with Cricket Irwin.