Yasuyuki Hasegawa was born in Tokyo in 1954.
He started his carrier as a professional musician (drummer) at the age of 18, when he was in the third grade in Keio high school. He made his professional debut with the band called Bad Scene. The band featured Char, who became later the most famous guitarist in Japan. During his university days, he also participated in "Chikada Haruo & HARUOPHONE" and "CARMEN・MAKI & OZ", both in recordings and live gigs.
After graduating the Keio University, majoring in law, he had been involved in PR business with Fullhouse Co., then he established his own PR company, TRAIN INTERNATIONAL, INC. in 1986. The company started successfully with remarkable PR events for the major clients such as Louis Vuitton (Japan), Asahi Breweries, Ltd., and Mercian Corporation. He also involved in the produce business of J. trip bar and J.B for their club and restaurant.
In 2000, the company claimed a large-scale commercial success with the Italian thigh-length stockings sold under his own company's brand in Japan.
Currently, he had launched the new item called Actress mirror which is big trend item in Japan. He is CEO of both TRAIN INTERNATIONAL, INC., and a fashion brand TRAIN CORPORATION.