This is saskrit ok bro.

Searching for the exact tag text under the "Tags" filter should return that tag as a clickable result, consistent with what appears when clicking it directly from the home page (e.g., 31 Novels).

It seems like you may be referring to "Kokushibo," a character from Demon Slayer: Kimetsu no Yaiba. Kokushibo is a powerful demon and a former human, known as the Upper Moon One of the Twelve Kizuki. Let me know if this is the character you're mentioning or if you'd like more details about him!