Since her childhood, interior decorating and home furnishings have been her passion.
Ai began her work in the interior industry by designing interior decoration and window treatments mainly for residential housings.
It was through meeting and working alongside with many people from various fields and self-education that she acquired the skills and techniques  necessary for this trade. Her personal touch  has led to the actual results of her work.

2000 -She joined the interior designing office, BROGUE CO., LTD.
2005 -She set up the Tokyo office of BROGUE CO., LTD.

Mostly in Kansai and Kanto regions, she set out color scheme, model room, and common use space for the houses built for sale, detached houses, and luxurious apartment buildings built by the leading developers.
Ai has been involved in more than 300 designing projects.
Also, she has experience in leading esthetic salon design, displays, and restaurant designing. She has spread her expertise and worked in designing individual guest house, customized condominium, and renovation, too. In 2014, she has collaborated with a design office in Shanghai and designed the Suzhou Townhouse.

November 1st, 2015 – She starts her own company, Oia Inc.

Traveling and staying at the hotels and resorts around the world, she felt and captured a variety of exotic trend with her five senses.

Her concept is:
“Exciting high-end aerial feeling / Time filled with feeling of peace and serenity”

With this, she became independent in order to expand the field of design and balance of the contrasted environment .
Ensuring to meet the needs of her clients, Ai Watanabe creates a loving and sophisticated design not only for the people who dwell in, spend time, or own the place, but also for the various stages of life people go through.