Kidou Senshi Gundam Msv Chronicles: Johnny Ridden summary:

Do you know of the man called Johnny Ridden? The legendary Zeon ace pilot? He disappeared after the battle after Abaoa Qu after a deadly showdown with a formidable Federation MS, and became a legend. As Johnny Ridden is trying to adapt to his new life of exile on Earth, he is followed by his past. He is called back into the spotlight to fight one last evil, a ghost of the old Principality of Zeon.