Toshiro Yamauchi was born in Buenos Aires on October 27, 1962. He completed his primary and secondary education in a Spanish religious school.
In 1982, he fought in the Falklands War. After the war, he studied dramatic arts and founded the rock band Louis XV, of which he was the leader for 20 years.
In 1992, he toured France, where he met Master Kosen Thibaut. He immediately recognized Master Kosen as the heir to Master Deshimaru and began to follow him.
In 1994, he received bodhisattva ordination and the name Tai Gen.
In 1997, he received monk ordination under the name To Shi. He was president of the Latin American Zen Association for eight years. For fourteen years, he has been the monk responsible for the Buenos Aires Zen Dojo.
In October 2016, Toshiro received Dharma Transmission from Master Kosen at the Shobogenji Temple in Argentina.