Why is there no second webtoon?

There is still so much material to be used for a second webtoon. Edwin escaped, Cristof must remember about Ryan at some point. Ryan "is gone, and will never come back", but was never shown dead. We do not know to which extent Kyon and Cristof could still be dangerious. There is still the pending problem of the vs solution. But in short, I just want more of them!