Responses
Lol, yes thy do, I remember at the beginning of the manga kinda first-ish chapters the ml said " don't worry mom I'll make sure you'll have grandkids instead of my brother "
We heard the mom one time when she came home and took the younger brother to sushi bc she thought he was the one who cleaned the floors. Who knows about a dad tho
I think they have both parents. Idk if I only imagine them after the live adaptation
they have parents???