The Door No One Knocks On
After never receiving a gift like all of her siblings and cousins, Mirabel has tried her best to make the best of her life being normal. She's still a Madrigal. No matter how much her Abuela pushes her away. No matter how much her cousins look down on her. No matter how much Luisa ignores her. No matter how much Isabela scolds and bullies her.
As the years pass, it's almost like she's invisible in her own home. Hidden away behind the nursey door, no one except her parents wondered if she was okay. And even then, them being shooed away because "she'll be okay". As the years pass, it's like no one knows she's there anymore. And so, Mirabel decides for the better of her family and the Encanto to just go and stop being in the way.
(Mirabel runs away from the Encanto after being mistreated since her ceremony)