Things have developed with Sekai and Makoto. From the outside, it seems like Makoto is still involved with Kotonoha, however his relationship with Sekai has accelerated. While, Sekai knows its bad to keep lying like this, she can't turn away Makoto. Gradually, Makoto starts avoiding Kotonoha by not answering if phone...
damn... i was thinking this was the story of my life and now all i'm thinking about is kicking some dumb motherF***ers ass right now, whoever made this knows how to really piss someone off... no wonder it said horror in the tag
I wonder if the only reason why Makoto is even trying to be with Sekai, is because he knows she'll put out, where as Katsura is shy. But probably genuinely loves Katsura.