Nanami continues to hold his tea cupped in one hand. It's warm and grounding, even before he drinks it. Yu's there too, of course.

"We're not, but no one can be there for them as they experience new memories from home. It all happens at once. Whatever happens suddenly has happened," Nanami says. He takes Yu's hand and squeezes it. "I'm no longer there for them back home. I died."

Here is the only place he can help them. He's known that the whole time, but he didn't want to tell Yu.