Wataru and Issei talked about many things including bringing Issei to the school and living in the dorms. At the same time, Umi was also talking to her dad, Katsuhiko. Both of them kept the fact that they are sharing a life together in the dorm a secret.
I guess i understand why Umi is like that, but still is kind of annoying... i want Wataru to end up with Renni girl o.o... i think thats how u spell her name lol
It seems like the first part or episode for every person is the past and how they met or a story about them and Wataru. The second seems to be about more recent goings on.