Anshin (安心) is the Japanese word for peace of mind, the quiet kind that comes from knowing you have done the boring preparation. This blog is about that: home safety, disaster readiness, and the small systems that keep a family steady when things go wrong. Written from Kanagawa, where the ground reminds us regularly. What you will find here is practical stuff, mostly in the order I would do it: water, light, the furniture that can fall on you, a plan that survives the first hour, and the paperwork nobody thinks about until they need it. It is written for people who would rather spend an afternoon now than a year recovering later. None of it needs specialist gear or much money. No sponsorships, no fear-mongering, just what has actually worked.