She another sister of the loud family who also roommates with Luna and Luan. She doesn't have a talent because she doesn't need to have a talent so she can be special even though her family ask her to find a talent. Leanne however, isn't ordinary to her family because it has to do something with her right eye.

As a young baby, Lynn Sr notice that the right eye is purple while the left eye is just a normal color from Rita and Lynn Sr. Lynn Sr asks the doctor to test Leanne why her right is purple and doctors agreed and took Leanne to test.

After a few hours the doctor came back with Leanne with a sad look that confuses Rita and Lynn Sr. He said that Leanne is diagnosed with 'O ka maka wili, a Hawaiian word for Purple eye. This shocks both Rita and Lynn Sr. The doctors explain that the purple can cause her to read people's minds and make her talk to animals. It is not a curse because it is different to the purple eye disease so Rita and Lynn Sr were relieved ,but they worried that their only child with purple might get bullied, so they cover her purple eye with her hair on the right side to cover the purple eye.

Leanne wishes she can save enough money to have her right eye fixed ,but Lynn Sr and Rita tell that even though she isn't perfect, they would always love her like her siblings. They let Leanne wear anything she likes and what is even crazy is she wanted to have highlights in her hair so they let her have it too.

When Leanne came home with her new look all of her siblings were shocked and Leni gave her sister an eye patch to cover her right eye.

When she tried it on Leanne was happy and hugged Leni saying thank you many times.