I’m a reporter and data journalist at The Asahi Shimbun with two decades of reporting experience, much of it covering science. I report and write stories where data reveals patterns that traditional reporting may miss. My work spans the full process—from acquiring and statistically analyzing complex datasets to publishing stories and interactive visualizations. I collaborate with academic researchers and build reproducible R pipelines to keep the evidence transparent.
Selected recent data projects
9-part series in The Asahi Shimbun
Supporters of a centrist party moved to a new right-leaning populist party—a shift that reshaped Japan’s party system—based on a 10-wave political-attitude survey of 5,200 people (19,000 responses).
Front-page story in The Asahi Shimbun
Japan saw 135,000 excess deaths from 2020 to 2022—more than twice the 57,000 official COVID deaths—suggesting indirect losses linked to hospital strain and vulnerability among older people, based on government mortality data.
Front-page story in The Asahi Shimbun
Heatstroke risk in Japan’s coolest northern regions is about twice that of warmer areas, even under the same summer heat, based on an analysis of 790,000 emergency cases from 2008–2022.
Asahi Shimbun feature; peer-reviewed paper
A religious organization criticized for aggressive fundraising delivered enough votes to sway a national election—a clue to why politicians stayed close to it—based on causal inference of vote-share data from 1,900 municipalities nationwide.
Tools and methods I use across the full workflow
Learning by building an interactive data page, with AI assistance. View project page ↗