Master Keaton OVA

Synopsis:

Taichi Hiraga-Keaton’s dream has always been to solve the mysteries of the Danube river basin and prove that both his and his mentor’s theories are true. Somewhere along the way, though, he became an insurance investigator; and now, ten years later, he isn’t any closer to proving their theories. However, Keaton isn’t any ordinary insurance investigator! With assignments ranging from protecting clients from the KGB to thwarting Stasi assassinations, and even raiding the Corsican Mafia, he’ll wish he stuck to excavating ruins! Just what is the significance of Keaton’s title of “master,” and who is the man who trained him to be what he is today?