Learning a lesson from the Great East Japan Earthquake, Daiichi Consultants Technology Co., Ltd. developed ENO, a manual water purifier for emergency use. ENO is an innovative product that purifies swimming pool water and pond water into water for domestic use. It is very useful in emergencies. Unfortunately, ENO has not been widely known or used. The company is considering providing ENO to developing countries but, due to the different circumstances in different countries, it is difficult to implement such a project in a short period of time. ENO is not a profitable product; charitable activities and international aid projects are not intended to be profitable. We therefore need to make our main business (geological surveying, civil design, well water treatment, water treatment, etc.) a higher priority.