The Evillious Chronicles, like its Japanese name tells you, revolves around the Seven Deadly Sins. But, the storyline is far more complex than individual videos about the sins. They’re set in the same universe, and as more videos are released, you can see the connection between the songs and the conclusion that they’re heading towards.
subset that explains how the seven deadly sins came about. (video above)
But the song (below) that made this series famous was actually it’s sequel
(悪ノ召使- aku no meshitsukai: Servant of Evil)
And my FAVOURITE cover is the NicoNicoChorus classical version:
So, if you like songs with complex and rich storylines, you should definitely give this series a try.