InuYasha originally ended in 2004 after the anime overtook the manga, which resulted in complaints of filler arc. When Rumiko Takahashi finished the manga in 2008, fans began asking Sunrise to finish the anime’s adaptation by covering the last arcs.
In 2009, InuYasha: The Final Act debuted. It picked up where the first anime left off and adapted the final chapters of the manga.
2. Ranma ½
Ranma ½ ran for 18 episodes between April 15 to September 16, 1989 before being cancelled due to low ratings. However, due to a few dedicated fans, the anime relaunched as Ranma ½ Nettōhen and enjoyed a 143 episode run.