The train back to Yukihara was nearly empty. They sat side by side instead of across from each other, which neither of them commented on, though Hiroto noticed it the moment they sat down and didn't stop noticing it for the rest of the ride.
Yuki still had the stone. She turned it over in her palm every so often, tracing the spiral with her thumb without seeming to realize she was doing it.
"You okay?" Hiroto asked, somewhere past the halfway point, when the rain outside the window had thinned back into the ordinary kind.
"I don't know yet," Yuki said honestly. "Ask me tomorrow."
He nodded. That was fair. He'd learned, over two years of his own grief, that I don't know yet was often the most truthful answer a person could give, and that pretending otherwise usually cost more than it was worth.
Somewhere outside Yukihara city limits, without either of them deciding to, her hand ended up resting near his on the seat between them. Neither of them moved it. Neither of them mentioned it. The train rocked gently through the dark, and for a little while, that was enough — not an answer to anything, just a small, steady fact they could both hold onto.
They brought the stone to Sato the following Tuesday, before Hiroto's shift.
She turned it over under the desk lamp for a long moment, adjusting her glasses, quiet in a way that made Hiroto's chest tighten with anticipation.
"Where did you find this?"
"Near a river," Yuki said. Not the whole truth, not a lie either. "About two hours from here."
Sato set it down carefully and pulled a slim, leather-bound ledger from a drawer Hiroto hadn't noticed before — older than anything else in the room, its cover cracked and soft with handling.
"The shrine that burned outside town," Sato said, "wasn't dedicated to any of the usual things. Not harvest, not fortune, not the local river god everyone assumes. It was built for something the old records only ever call the one who waits between." She opened the ledger to a page marked with a faded ribbon. "This mark was carved above its gate. I've seen it exactly twice before in my life. Once in a photograph of that shrine, taken before it burned. And once—" she paused, glancing up at them both "—in a visitor's log kept by the shrine's caretaker, decades before either of you were born."
"There's a log?" Hiroto asked.
"A fragment of one." Sato turned the ledger toward them. The handwriting was old, cramped, faded in places to almost nothing. "The caretaker recorded certain unusual sightings near the shrine. Dates. Brief descriptions. Most of it is illegible now. But there's a name."
Yuki leaned forward. "A name?"
"Not a full one," Sato said. "Just a single character, followed by an entry that says only: she does not remember it either."
Hiroto stared at the page, at the one fragile character sitting alone in the margin, ink gone thin and brown with age.
"That's not much," he said quietly.
"No," Sato agreed. "But it's more than anyone else has found in forty years of people quietly asking me about that shrine." She closed the ledger gently, the way you'd close something that had already survived more than it should have. "If you want the rest, you won't find it here. The caretaker's descendants still live in the area. There's a shrine keeper's house near where the original stood — abandoned now, but standing, as far as I know."
"You think there's more of the log there," Yuki said.
"I think," Sato said, "that if this has been happening for as long as I suspect, someone eventually tried to write it all down properly. And I think whoever that was probably didn't finish, or didn't want it found — which usually means it's still there, waiting for someone patient enough to go looking."
Outside, the rain had started again, steady and unremarkable, the ordinary kind that asked nothing of anyone. Hiroto and Yuki stood under the library's stone archway, both of them quiet, both of them turning the same small, incomplete piece of a name over in their minds.
"One character," Yuki said finally. "That's all she's had, this whole time. Just a fraction of herself, sitting in a book nobody's opened in decades."
"Then we go to the shrine keeper's house," Hiroto said.
Yuki looked at him — really looked, the way she had that first night at the window table, and again on the platform when the rain had first shown her something impossible standing beside him.
"Together," she said. It wasn't a question this time. It was simply true, the way most things Yuki said were simply true, without needing to be dressed up as anything more.
Hiroto nodded, and they stepped out into the rain side by side, already walking in the same direction before either of them had said where they were going.