Endo is a native of Kaminoyama, Yamagata and graduate of Chuo University (where he played Rugby).
In 2015 he was appointed to oversee the 2020 Summer Olympics preparations on behalf of the Japanese government.
[1] In February 2016 it emerged that he had received ¥9.5 million over five years in donations from the head of an unnamed Tokyo-based teacher dispatch company[2] as the company was trying to boost the use of Assistant Language Teachers (ALTs) across Japan.
It was alleged that due to the donations Endo lobbied for greater use of ALTs and supported a project the company was pushing.
[4] Prime Minister Abe defended Endo and said "“My administration would never let cash affect its policies”.