Everyone who'd ever interacted with Nene or Amane has led two lives.
Regardless of the time, one with Amane, one with Nene, those who have been cursed (Or blessed, He supposes with a soft laugh, it was silly thought) with their existence being intertwined with theirs.
Kou's, for example, in his first life, his upperclassman was Yashiro Nene, the sweet, romantic obsessed girl who signed her humanity for a chance at love. He had a great deal of admiration for her, although, at the time, he confused it with a more affectionate feeling, such as a crush.
It was funny how non-linear time is, but thinking about it for longer than you should, gives a major migraine.
...
Kou sat at his desk, papers scattered across the surface, crumpled sheets thrown across the ground around him. His eyebrows knitted tightly together, frowning at the writing in front of him.
His grip on his pencil tightened, trying to rack his brain. Words just seem to evade him. But it is not like he's been particularly good at writing.
Suddenly he pushed himself back and groaned loudly, "Why can't I remember!" He tenses and clasps his hand around his mouth. Now he remembers that his little sister slept just a few rooms away and mentally scolds himself.
Kou hunches over the desk again, trying to figure out what happened. All he knows is that it isn't what he knew.
A thought crossed his brain; he felt his stomach drop.
What if this wasn't real? What if it was like the painting?
He pauses. What painting?
Why did a painting come to mind, and why did it fill him with so much dread.
-unfinished.