むすんで、ひらいて

There is a big stone in a schoolyard. This stone has a legend of love. One day, the stone is broken accidentally and a girl comes out of it. Is she the Goddess of love or...? [From [url=https://web.archive.org/web/20090106235841/http://www.erogeshop.com:80/product_info.php/products_id/1003040]Eroge Shop[/url]]