 On one wiry night, Lupin encounter a mysterious man named Mamo Kyosuke. He claims to be be from the 29th Century. He tells Lupin that on March 31, 2874; Lupin the 13th destroy the Mamo Clan. And for that Mamo gives Lupin 4 days to live. Because on the 4th day Lupin will vanish from the face of the earth. Lupin finds this to be baloney, so he went to pull a heist with Jigen and managed to steal a golden statue, but then it vanished from their position. Mamo reappears and tells Lupin that he went back in time and prevented the statue from ever been modeled. It was a warning in what will become of Lupin. As Mamo can simply go back in time and kill off any of Lupin s ancestors. This really made Lupin freak out. Question is who is Mamo really? And how can Lupin defeat him before the 4th day comes?