95% of the schoolyard grounds in Japanese primary schools are concrete or rubber. This prevents kids from running at full speed. Or sliding, which is bound to get them injured. As a result, children's physical abilities are seeing a decrease every year.

With the participation of primary schools across Japan, the first year saw 20 playgrounds turned into grass lawns, followed by 43 in the second year, encouraging children to actively engage in sports. Gaining wide approval from football/soccer fans, the project resulted in an increased recognition in how toto's proceeds are being used to turn school yards into lawns. In turn, toto's sales also successfully increased by 140%.

It has already been decided that the project expands and continues until every primary school in Japan has a grass playground.