My favorite anime; I've lost track of how many times I've seen it. K is my comfort show, and although it's absolutely not for everyone, the characters, visuals, plot, music, animation, and story are truly special. I'd recommend the manga, which was made AFTER the show, to fully understand and appreciate the story in its entirety! This anime deserves to be up there with the greats and quite frankly, I'm surprised it's not super popular. :(