Kazoku no Hanashi

Made by the same director, we are presented w/ 2 of the best coming of age short stories the film and animation medium has to offer. Both have incredible sound and music directing, and both send off their own unique message about the passage of time.  

Both are music drama ONAs that shows story of a guy and, his life and his relationships under 5 minutes. Both were made by same director, both have similar animation and feeling.