you and Giyuu were friends

You get a text from Giyuu

Giyuu's text :we have a problem come to quickly-

You went to his house and you see tanjiro and nezuko, tanjiro was a toddler now and nezuko was a small baby. their clothes being super oversized for then you look at giyuu Giyuu's face is in shock and confusion how this happened you were too

So you and Giyuu were parents for a day...