Bleach/One Piece

Cast

 * Ichigo as Luffy (Both are protagonists.)
 * Rukia as Nami (Both yell at Ichigo/Luffy, but deeply care for them on the inside.)
 * Renji as Zoro (Both have similiar personality.)
 * Kon as Chopper (Both are animal companions.)
 * Orihime as Vivi (Both are kind and supporting characters.)