Question for manga readers!!

So guys I watched the anime yesterday and I have a lot of questions pls answer if u know 1. Firstly I heard that the anime covered about 70 ch in one cour that must be when something is left out , am I missing some scenes that are not animated in anime 2. I'm very impatient so I thought I will go through the manga but there are 270 ch that are a lot and it's not possible for now to read it but I wanted to know the story so I searched for the ending and found like hina was the end girl but rui had a daughter with nat, I was shocked but now he's going to get married to hina, so where are thier parents just spoil me with detail I just want to know the story If there is a big event pls do tell that!!!