. >> he works for the public works center of kumamoto city. he became interested in rocks while handling construction projects. >> translator: i often hear construction workers say they don't feel like touching certain rocks or moving the small shrine. so i've been wondering if there's some force at work that we can't see. >> as he pondered this unseen force, he became drawn to mysterious giant rocks. burning with curiosity, he began spending all of his holidays visiting megaliths. in the past ten years he visited more than 200 stones all across japan. amazing. but there's one thing that's bothering him -- his family has never shared his enthusiasm. >> translator: i don't care to ask because he'll never stop. >> translator: i wouldn't say i'm not interested. but he devotes all his free time to rocks instead of us. until last year, he's gone out to see the rocks all by himself even on october 22nd. >> translator: she means our anniversary. >> translator: he was never home that day. he goes all over the country you to visit the stones. really, h