1. Hyakki Yagyou, 百鬼夜行, "Night Parade of One Hundred Demons", as the name suggested it's a folk lore it refers to a parade of thousands of supernatural creatures known as oni and youkai march through the streets of Japan at night, if you watch Nurarhiyon no Mago you will be familiar with Hyakki Yagyo 

(image source: yokai.fandom.com/wiki/Hyakki_Yagyō)

2. Hitotsume-kozo, literally mean one-eyed child.

(image source: yokai.com/hitotsumekozou/)

3. Kudan, a youkai with the power to be able to see the future at the cost of their life, most Kudan died young. 

(image source: kyokousuiri.fandom.com/wiki/Kudan)

4. Kitsune

(image source: pinterest.cl/pin/434315957806788902/)

5. Inugami

(image source: powerlisting.fandom.com/wiki/Inugami_Physiology)

6. Yuki-onna 

(image source: pinterest.com/pin/665688388668980012/)

7. Tengu 

(image source: deviantart.com/morigalaxy/art/Tengu-572487377)

8. Oni 

(image source: redbubble.com/people/thebozle/works/34492469-big-oni)

9. Oboroguruma

(image: nioh2.wiki.fextralife.com/Oboroguruma)

*Disclaimer : the uploader may or may not be the owner of the arts