Such a tough decision. So many different types of themes. I'll go with Natusme Yuujinchou. This anime is my all time favoriete for a reason (story, characters, animation, and MUSIC). All the muziek is so amazing, all the opening and ending songs. But the muziek that is woven within is so beautiful and brings back the memories. <3 The hard vraag is, which song to post from this series.