The Story
Closing The Devotion of Suspect X left me a little stunned for a while, so I went looking into the setting first.
Turns out this is one of the rare Higashino novels set on real Tokyo streets rather than invented ones — the stage is Fukagawa, in Tokyo's Koto Ward.
Shin-Ohashi bridge, Kiyosu Bridge, Kiyosumi Garden — Ishigami's daily route through the story still exists almost exactly as written.
Shin-Ohashi is a real bridge over the Sumida River, the one Ishigami crosses every day between the bento shop, his apartment, and the school where he teaches. You can walk across it today.
키바 공원(木場公園), 고토구 도쿄 · Wikimedia Commons
Kiyosumi Garden sits right in front of the private high school where he works, meaning you can retrace his actual commute.
This isn't a typical whodunit. You find out relatively early who did something. What's left is one question: what, exactly, did Ishigami do — and how far did he go?
He steps forward to help Yasuko and her daughter next door, and the way he chooses to help is the whole point — nobody, including the reader, sees it coming.
Physicist Manabu Yukawa (nicknamed Galileo) gets pulled into the case at Detective Kusanagi's request, and there's something quietly heavy about the fact that he's recognized Ishigami's talent since their university days. Two geniuses who respect each other end up on opposite sides.
Go back to the beginning after finishing it, and everything Ishigami does casually next door to Yasuko reads completely differently. That's what makes this novel unsettling.
도미오카 하치만구(富岡八幡宮), 고토구 도쿄 · Wikimedia Commons
The word 'devotion' in the title feels like simple kindness at first. By the last page, its weight has changed entirely.
Published in 2005, this book was nominated for the Naoki Prize five times before finally winning it in 2006 — this was the one that finally got him there.
After the English translation came out, it was even a finalist for the Mystery Writers of America's Edgar Award — apparently rare for a Japanese mystery novel.
In July 2026, news came that Higashino, who wrote this, had passed away. He left behind 106 books, and I think I understand now why this particular one keeps coming back up.
Walking from Shin-Ohashi to Kiyosumi Garden gives you some sense of what might have been going through Ishigami's mind crossing that bridge every day. Once you know how it ends, that same walk feels completely different.
Where the Scene Really Happened
Top 5 locations
신오하시(新大橋)
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청주교(清洲橋)
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기요스미 정원(清澄庭園)
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몬젠나카초(門前仲町)
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도미오카하치만구(富岡八幡宮)
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All The Devotion of Suspect X locations (7)
신오하시(新大橋)
A bridge crossing the Sumida River — the point where Shin-Ohashi Road, the novel's geographic spine, runs west to Nihonbashi and east toward Edogawa. It sits at the center of Ishigami's real daily route between the bento shop, his apartment, and the private high school where he teaches.
청주교(清洲橋)
Downstream from Shin-Ohashi, this real suspension bridge is known for its Art Deco design. The novel mentions it as one of the bridges Ishigami liked to cross on his walks, showing that his riverside route extended beyond Shin-Ohashi alone.
기요스미 정원(清澄庭園)
A real Japanese stroll garden located right in front of the private high school where Ishigami teaches. The novel describes his commute running south from this garden along Shin-Ohashi Road — the scenery he passed every day still largely survives.
몬젠나카초(門前仲町)
A real commercial district that anchors the Fukagawa area. It sits close to the neighborhood where Ishigami and the Hanaoka family live, and preserves the modest, old-town shitamachi atmosphere of working-class Tokyo.
도미오카하치만구(富岡八幡宮)
A real Shinto shrine near Monzen-Nakacho and a landmark of the Fukagawa district. It grounds the neighborhood where Ishigami lives in real geography, and is also famous as the site of the Fukagawa Festival, one of Tokyo's three major festivals.
니혼바시(日本橋)
The real bridge and district where Shin-Ohashi Road meets its western end. The novel explicitly states that from the Shin-Ohashi intersection the road runs east to Edogawa and west to Nihonbashi, using this geographic axis to anchor Ishigami's movements.
나오키상(제134회, 2006년)
The award Higashino won for this novel. After five previous nominations without a win, he finally took the 134th Naoki Prize in 2006 for The Devotion of Suspect X — one of the defining turning points of his career. This entry commemorates the award itself rather than a specific building, so no coordinates are shown.