“It was when I heard that Yuzu had been murdered by somebody that I decided I could stay here the rest of my life. Ao called and told me. I was pregnant with my older girl then and couldn’t attend the funeral. It was a terrible thing for me. I felt like my chest was about to be ripped apart. Knowing that Yuzu had been killed like that, in some unknown place, and that she’d been cremated and was nothing more than ash. Knowing that I’d never see her again. I made up my mind then and there that if I had a girl, I’d name her Yuzu. And that I’d never go back to Japan.”

“So your daughter’s name is Yuzu?”

“Yuzu Kurono Haatainen,” she said. “A part of Yuzu lives on, in that name, at least.”

“But why did Yuzu go off by herself to Hamamatsu?”

“She went there soon after I moved to Finland. I don’t know why. We wrote letters to each other regularly, but she didn’t tell me anything about the reasons behind her move. She simply said it was because of work. But there were any number of jobs she could have had in Nagoya, and for her to move to some place she’d never been before, and live all alone, was the same as committing suicide.”

Yuzu was found inside her apartment in Hamamatsu, strangled to death with a cloth belt. Tsukuru had read the details in old newspapers and magazines. He’d searched online, too, to find out more about the case.

Robbery wasn’t involved. Her purse, with cash still in it, was found nearby. And there were no signs she’d been assaulted. Nothing was disturbed in her apartment, and there were no signs of a struggle. Residents on the same floor had heard no suspicious sounds. There were a couple of menthol cigarette butts in an ashtray, but these turned out to be Yuzu’s. (Tsukuru had frowned at this. Yuzu smoked?) The estimated time of death was between 10 p.m. and midnight, a night when it rained till dawn, a cold rain for a May night. Her body was discovered in the evening, three days later. She’d lain there for three days, on the faux tile flooring of her kitchen.