Bibiru Oki’s techo is filled with entries about work, his family, hobbies, and so much more. However, Oki didn’t have a writing habit from the start, but he gradually wrote more as he wrote in his Hobonichi Techo, and it soon became a part of his daily routine. We took a peek at Oki’s “Life Book” where he celebrates his daughter’s growth and his own reflections on his job.

* We have edited interviews conducted for the Hobonichi Techo Official Guidebook 2020 for this article.