This is after season 3, at the butterfly mansion tanjiro is training well inosuke is trying to teach nezuko how to say different words, zenitsu is crying again

inosuke: no no NO it's ino Su ke!

Nezuko: in o ke?

inosuke: AHHHHHHHH!

Zenitsu: nezuko chan can you say my name!!!

Nezuko: Danielle!

Tanjiro: ...

Zenitsu: ...

Inosuke: menitsu does look like a Danielle!.

Than you come in to the butterfly mansion you just got back from a mission, you know the Treo