This is actually my first review in MAL and I felt the need to write a review since I really enjoyed this series up until the 4th season.
Many people would disagree because this show ,animation wise, improved drastically from season to season, and still has room to improve. What really kept me excited was the plot though. and I enjoyed it since the first arc. Unfortunately I really loath the 4th season arc, it is filled with poorly made dialogs and extravagant "ideologies", which I can't describe it otherwise than downright cheap propaganda. previous seasons were unpredictable with the death of important and impactful characters. This season is as predictable as it comes. I loved the series up until this arc, still love some characters, but Ei Sei became terrible character in my opinion.