What are Hinata's duties as the First Lady of the village?

[Natsu Shazneel]

She is in charge of the milking system. Her goal is to insure kids get milk everyday.

 

[Itachi Edo]

Making Naruto ramen and making sure Boruto doesn't cheat anymore. Meanwhile, Himawari is secretly training to become the one who planned everything for Naruto's next big battle.

 

[Osmon]

Who told you that there is a First Lady in Konoha ?

 

[Pukkake Pokayo]

She is a trap queen.

She doesn't HAVE to do anything.

 

[JStar King]

Another bash thread, huh?

 

[YellowFang]

Make and manage Naruto's big family...

 

[shelke]

Being an ugly looking house maid?

 

[Melanin]

This is off topic, but do you like Sasuke over Naruto?

I like then in different ways don't really prefer one over the other but Sasuke is handsome & wealthy.