Coco (from Disney/Pixar), the Movie Storybook.

Coco is a storybook based on the animated film from Disney/Pixar. It follows the adventures a young boy, Miguel, as he tries to become a musician.
His family is very strongly against this ambition because his great great grandfather had abandoned his family to pursue the same dream.
Coco is the name of the child the great great grandfather had left behind. She is also Miguel's grandmother.
Miguel disobeys his family to pursue his dream and ends up in the nightmare of the "Land of the Dead".
While he is there, he discovers the truth about who his great, great grandfather really was.