生日：

年齡：

性別：

身高：

In Shin Mazinger, he is one of the mysterious employees at the Kurogane House, a spa in Atami. He, Cross and Master seem to be Tsubasa's most trusted followers. His speciality is the use of explosives.<br /> <br /> Yasu's original appearance was the manga Violence Jack, where he acted as a yakuza goon. <br /> <br /> <br /> <br /><br />