A new client called on the famous City Hunter, but this time the mission is very different from the previous one... Old Michihiko Jinguji is convinced that Ryo is his grandson, who has disappeared years ago. As a result, he wants to marry the one he considers his daughter to be his daughter with him! To make no difference, she would be the target of a formidable murderer... Haruka, for her part, would like to become a strong woman, able to make decisions without being influenced by her grandfather. So she will spend a few days with Saori and the other ladies of City Hunter... Find all the legendary characters of City Hunter in an official spin-off validated by Master Hojo himself!