Raising awareness of the natural environment by taking the low awareness of the natural environment of people living in the city as an issue and noticing the reality of the deteriorating natural environment and the actual conditions of the animals living there.

In reality, it is a fake, but a parent and child of a hippo wandering in a city river that only looks real. By creating such a situation that is absolutely impossible in the city, it attracted people's attention and pointed out the reality of the deterioration of the natural environment.

In terms of the deteriorating natural environment, drought is the most severe issue. In a city with low levels of awareness about the real natural environment, we believed that Shibuya River in Tokyo, where many city dwellers come and go, was the most suitable setting for the campaign. The hippopotamus family which looked like the real thing, gathered people's attention and effectively conveyed the message.

Only two days of summer vacation Saturday and Sunday full of many people. A hippo parent and child that can only be seen in the middle of an urban river. A brand message with a hashtag is installed on the railing of the bridge to increase people's environmental awareness so that messages can reach not only those who are there but also many people who are not there. It was designed and implemented to propagate to many people, both young and old, both offline and online.

Nailed the eyes of people to the hippopotamus parent and child who should not be in the city. Reach reached a big topic on social media in just a few minutes, reaching 12 million social impressions. The number of media exposure exceeded 100 media, and the advertising conversion cost was more than 10 times the investment budget. Awareness of urban rivers, which no one has ever looked at, improved urban water quality, and many people were sympathetic to the attitude of national geographic support for wild animals suffering from environmental problems.