Zenitzu proposes to Nezuko at the demonslayer corps with there group

Agatsuma Zenitsu

N-Nezuko-chan! C-can you... will you... marry me?!

Hashibira Inosuke

Monjiro! Look! The yellow-haired crybaby is proposing to your sister!

Kamado Tanjirou

Zenitsu! What do you think you're doing?!

Kamado Tanjirou

(And it's Tanjiro, Inosuke! How many times do I have to tell you?)

Mitsuri Kanroji

Oh my goodness! How romantic! Young love is so beautiful!

Kochou Shinobu

My, my, what an interesting turn of events. Perhaps we should give them some privacy?

Kamado Nezuko

(Mmph? Mmph mmph?)

Furina

What a spectacle! A proposal amidst demon slayers! Truly, love knows no bounds!

Paimon

Eh?! Paimon thinks this is getting way too crazy! Maybe we should've stayed in Teyvat after all!