Gonna be honest, my man, you're *probably* going to struggle to find a DM that will allow a Hollow Knight character in their game. And even then, you're going to have more luck just reskinning current stuff in 5 or upcoming 5.5e.
Hollow Knight has a very different magic and melee system from DnD, and a ttrpg that replicates that is going to be so different, by default, that its just not worth even considering system compatibility with DnD.