Part of the owning family of NTP Holdings, centred around one of Japan's largest car markets. After graduating DOSHISHA University, entered the company as a dealer and rose to become president. Serves on the Nagoya Board of Education. Set a record of 180 cars sold in one year, continuous winner of the Toyota Sales Prize for Excellence. From 1999 to 2000, studied at the American NADA Academy (National Automobile Dealers Association). Was the first Japanese national to boast enough grit and chrasima to complete both programmes.

In October 2013 at the Imperial Hotel Osaka, Shigeo Oguri gave his first ever performance as an operatic tenor at a major corporation’s 10th anniversary event.In July 2015, he announced his stage name “Sekai” and in in the same year in August he made his debut performance as Sekai at the Nagoya Congress Center in front of an audience of 1500 people.In April 2017 he performed at his concert “Opera Aria”. On February 2, 2019, a concert will be held at the Music Hall of Fame, Carnegie Hall in New York, USA. Receive praise from all over the world and deliver excitement. Seikato's challenge goes to the next stage.

Shigeo Oguri’s book “Ogurhythm” was released in January 2013. The English version of the bestseller was also released not only in Japan but also in Singapore and New York. The book continues to maintain its status as a top-ranking title.Two other books were released in the following years: “Katayaburi ni ikiru” (May 2016) and “Ichibyouhou” (May 2017).His highly anticipated fifth book is scheduled for release in March 2018 the 7th book "A man holding a star" by Ryuichi Matsushita will be released in June 2020.June 2021 Published the 8th book, "Magical words that move the hearts of 10,000 people", "Why do you feel better when you talk to this person

Shigeo Oguri is recognized as an active supporter of the “Kokushu no Kai” events held as part of the Cool Japan Movement which aims to promote Japanese culture throughout the world.In October 2015, at the World Heritage Site of Shimogamo Shrine in Kyoto, he was inducted as a tenth-generation “Sake Samurai”.In September 2017 at the fourth Cool Japan “Kokushu no Kai”, he collaborated with Takafumi Horie (Horiemon) from WAGYUMAFIA to deliver a crowd-pleasing performance.
The second Kokushu no Kai in New York took place on 2 February 2019 following the concert at the Carnegie Hall. 250 guests gathered for the occasion at the Nippon Club.

Even as he worked toward becoming company president, Shigeo Oguri always dreamed of providing human resource education—learning together to cultivate valuable company workers—for young employees. As a first step toward this goal, he established in-house "Personal Abilities Seminars" in 2010 and volunteered to be the instructor, after which he began enthusiastically holding lectures and seminars outside the company as well. Oguri also engages in activities to foster greater globalization among today's youth as a member of the Nagoya City Board of Education, and every year as a specially appointed instructor for Miss Universe Japan he offers his support in the form of his personal OGURHYTHM philosophy for the ambitious women participating as representatives for each prefecture across Japan.