A documentary of Yui Hatano(aka Hatano of the World), a veteran AV actress who debuted 15 years ago, showing off her cuckolding techniques! This time, Yui Hatano has to sell a luxury detached house (priced at about 70 million yen) in S-ku, Tokyo, through sexual favors! She seduces the husbands of four lovey-dovey couples who come to view the house at an open house, and she uses a magic mirror to seduce them! Will Yui Hatano talk and erotic techniques? A real documentary of sexual favors!