継国巌勝
He's from the [[Kimetsu no Yaiba]] and a former Demon Slayer from Sengoku Era.
He's appearance was nearly identical to his [spoiler]demon form[/spoiler], with the exception of the number of eyes, his prominent eyebrows, and notably less pale skin. His eyes had dark purple irises and normal, white sclera as a human. As a child, he was usually seen wearing a white kimono as opposed to the purple-and-black patterned one he is seen wearing as an adult.
[spoiler] He's the human form of [[Kokushibou]][/spoiler]. 
[spoiler]He's also the ancestor of Muichiro Tokito and Yuichiro Tokito.[/spoiler] 
[spoiler]And he is [[Tsugikuni Yoriichi]] older twin brother, the strongest Demon Slayer that ever existed.[/spoiler]

h4. External Links
* "Kimetsu no Yaiba Wiki: Kokushibo":https://kimetsu-no-yaiba.fandom.com/wiki/Kokushibo
tsugikuni michikatsu