Hello! I’m Koichiro. Please call me “Yamasan”. It derives from my family name and my friends call me so.

I worked for a machinery company as a project manager and engineer for mechanical and electrical construction projects both domestic and overseas for over 35 years. I recall my first overseas project in the Kingdom of Saudi Arabia when I was 26, and the second was in Singapore. I visited many countries for surveys, meetings, commissioning, project handing over, and so on.

In 2014 at the age of 60, I decided to retire from the company and live the expected further 30 years of life with a new career and experiences. I, then, studied translation and guide interpretation. I passed the national examination for licensed guides (English) in 2015 and registered with the Tokyo Metropolitan Government in February 2016.

Until now, I have been guiding many beautiful guests mainly to popular sightseeing spots such as Asakusa, Tsukiji, Omote-Sando, Meiji Jingu Shrine, and Tokyo Skytree, and also cultural experiences of Origami making, Furoshiki wrapping, and Sushi cooking.

I am happy that I can freely arrange a customized tour together with you, or can propose my tours to you. I want to show you some parts of daily Tokyo life and introduce you to Bunkyo City which is located in the heart of Tokyo, just north of Chiyoda City where the Imperial Palace and Tokyo Station are. The city is Tokyo’s typical residential and academic area where I was born, grew up, and live a happy life now.

Now, we can tour around the world but have not yet overcome COVID-19 completely. Recently, the number of passengers wearing masks on public transportation in Tokyo reduced to some 25% but we should mind about it still. Please carry your mask to wear it where or when necessary (December 2024, Yamasan).