you should add duels to hinokami

[hard falcon]

For slayers you would either be teleported somewhere like the drum demon art or you would stay where you are and nobody can interfere. You would also use wooden swords. For demons you would be teleported to the infinity castle while Muzan watches the demons brawl.

[frozen crag]

bump

[foggy ravine]

Isn't the ranked PvP mode exactly this?

[hard falcon]

I mean like regular friendly duels with wooden katanas