Babo: Miracle of a Giving Fool (2008)

They are both about mental disabled adults coping with their family and falling in love with individuals who are not disabled.

Both story concentrates on the main actor with mental instability. A grown up men with a mind of a young child. Happy and carefree.

Both have a character with a disability. Both of these characters change and affect their surroundings in their own special way :)