Try to complete this sentence:
"Hoozuki no Reitetsu is an anime similar to..."
This is a totally original, personal, unique and untransferable show. There's no antecedents and I hardly believe it will get succesors.
I'm neither always aware of most of its japanese folkloric references, nor I get all of the jokes.
It' s a fascinating diorama displaying the myths and legends that shaped the whole japanese culture during millennia, presented with a border-genious mix of traditional art (based on ink art, mostly) and modern anime drawing style far more accurate than usual.
Tone is both didactical and burlesque, with a sense of humour maybe somehow dark
but seemingly functional for any age target audience (not a small bit of ecchi here).
But, of course... Hoozuki no Reitetsu is not a blockbuster; too unlabellable for that.
Just an underachieved jewel.
Addendo: The OP "Jigoku no Sata mo Kimi Shidai" is but a new energetic version of the 1st season one, singed as well by the same show's seiyū, with Hiroki Yasutomo (Hoozuki-sama's voice) deserving a special mention.
The guy is kinda Japanese James Earl Jones.