the anime death note strongly corilates with the idea of the shadow. a idea populaurised by jordan peterson that when people dont struggle they have no right to call themselves a good person till they have to struggle then they see theyre true forms and colors.

berserk follows the idea of sacrafice. the idea of the eclipse quite literally represents the idea that the road to hell is paved in good intentions.

tokyo ghoul follows the idea of sacrafice and how playing both sides and playing victim results in help with no one and only makes people feel morally good while people suffer.