I thought there are 5 Nois? Where are the 4 others?

I'm pretty sure there are only 4 noi. It think the other 3 are still too little and being taking care of? Honestly idk


But we'll meet them on chapter 80 where there are also all 5 owens 4 nois and nux.

Wait what? When? How? Why? (I forgot)

they're not born yet