So how do I start this any other way than saying "it's awesome." Well besides that and the amazing animation and artwork...
Blade of the Immortal is not a series for the faint of heart. Hiroaki Samura's extremely grotesque and bloody 1993 manga series...
Anime You Should Be Watching:
Black Clover – Opening Theme 7 – JUSTadICE
My Roommate is a Cat – Opening Theme – Unknown World
The Rising of the Shield Hero - Opening 2 (HD)
The Quintessential Quintuplets - Opening (HD)
The Ancient Magus' Bride - Opening Theme 1
My Hero Academia Season 3 – Opening Theme 2 – Make my story