Mirai Nikki (TV): Ura Mirai Nikki

Both based around friends who have goals in mind and will do whatever it takes to reach those goals. Also both have to do with murder and death. 

Short special episodes that feature chibified characters of the respective parent franchises as a way to parody the more serious original story. 

Short special episodes that feature chibified characters of the respective parent franchises as a way to parody the more serious original story. 

Both are spinn-off specials of othervise violent anime, featuring it´s characters and making fun of it. Both have short episodes.