As a professor of department of architecture in graduate school of Engineering, the University of Tokyo, Dr. Otsuki is participating in Urban Redesign Studies Unit which is providing an education of master course students from department of Civil Engineering, Architecture and Urban Engineering in the University of Tokyo.

In the recovery process of Tohoku Great East Japan Earthquake in 2011, Dr. Otsuki had contributed to create the Community-Care Temporary Housing Projects in Tono City and Kamaishi City of Iware Prefecture, and also committed to the creation of public recovery housing design in Okuma Town of Fukushima Prefecture where all residents had been forced to evacuate from their original dwelling sites because of the Fukushima Nuclear Disaster.

The Urban Redesign Studies Unit was established after the 2011 Great East Japan Earthquake, as an organization to imagine cities, regions, and land for the next generation. The education program aims to collaborate with various fields other than engineering, to establish new urban society models that can be applicable for each urban, regional, communal, and continental level, and to develop the model into global cities outside of Japan.