 If you liked
Shinseiki Evangelion
|
 ...then you might like
Shiawasette Naani
|
Althrough different in genres (fantasy/sci-fi), both have main characters who is somehow depressed/angry at others. In both anime, question "What is happines?" is discussed. Both main characters are shown the world inside them/inside their head. Both anime have angels. Both have old style animation.