When I was doing my master’s degree in mathematical statistics, a seismologist showed me a dataset that contained hidden earthquake signals in the observations of a well’s groundwater level. I was asked to statistically distinguish the earthquake signals from background fluctuation noise. I was fascinated by the fact that I could apply my statistical skills to solve a real-world problem. Ever since then, I have been enjoying designing statistical methods to reveal insightful information from data in diverse research fields including seismology, volcanology, food science, climate science, medical science, and physics.