Sora no Otoshimono Forte

animes where the protagonist lives for centuries or even millennia, or who are immortal.

Anime series that covers all of the original source they're based on, with some notes.

Check out the other parts at this link:
https://myanimelist.net/profile/Yuriko_Sakai/stacks
The Stacks are updated constantly so check them every once in a while :)

A big "thank you" to my friend Lorissagg for helping me with some researches :D
Here's his profile if you're interested: https://myanimelist.net/profile/Lorissagg

When a single OP and or ED song was not enough!

Rules:
-Total OP/ED Songs At least 50% of the total number of episodes. (total OPs and EDs are considered separately, not combined.)
-Each episode must be at least 23 minutes long.
-Different versions of the same song are counted.
-The same song performed by different singers are counted.