While attending Musashino Art University, Nagasaki worked for Casappo & Associates, where he studied interior design. After leading a number of projects domestically and internationally, he started his own business in 2008.
His current work focuses on design in restaurants, cafes, clothing and other specialty stores. Nagasaki works with the client to create an atmosphere where the customers can feel comfortable and have a good time. With planning that makes use of the land's original appeal, he creates a natural space that maintains its quality.