After finishing the 3.4 story, I was feeling pretty choked up. I wrote this because I wanted to give them a truly sunny, happy world. I wanted to hit Enter and erase all the angst, then write some everyday, relaxing stuff. Basically, just let life be as ordinary and peaceful as it can be.
Below, I'll explain roughly how I plan to write it. There might be some spoilers, though I'm not sure if they count.
First, here's the host's big idea: from the start, none of the characters know one another. The point is to create a brand-new world where they can meet again as ordinary people. Yes, an ordinary world, with no magic or fantastic creatures. I've kicked out the chimeras and Earth-Beasts, and then the host starts writing about their campus life (college, laid-back style). The three little ones know one another from the start, and the other characters will be introduced gradually as the story progresses.
But then the host thought about it again and decided that still wasn't satisfying enough, so I started plotting again (asking for trouble). I wanted the story to have a beginning and an end, so I moved the setting of the novel back to Amphoreus. That means what the host is writing is actually one lifetime in the new creation.
Once the host feels there's been enough everyday life, I'll have them recover their memories and realize that this lifetime is actually a beautiful dream written by Calligos, all to bring forth Tie Mu. In the end, the Chrysos Heirs will join forces to save Amphoreus.
The structure is: mindless daily life, mindless daily life, occasional foreshadowing of the ending, mindless daily life, mindless daily life, happy ending.