From Eroica with Love

From Eroica with Love (エロイカより愛をこめて, Eroica Yori Ai o Komete) is a shōjo manga by Yasuko Aoike which originally began publication in 1976 by Akita Shoten. The series ran irregularly in the Japanese anthology magazine Viva Princess from December 1976 to April 1979, then moved to the sister publication Princess beginning in September 1979. It was featured regularly in Princess, with several later side stories appearing in Viva Princess, until August 1989. It went on hiatus for several years, then reappeared in Princess in May 1995 and ran irregularly through December 2007. As of January 2009, it is once again regularly featured in Princess Gold.

Plot
What happens when a gay art thief and a conservative NATO officer cross paths? Disaster, of course. Dorian is an aristocrat, a thief, and a hedonist; Klaus is a duty-driven espionage agent with no patience for fools. Follow them as they chase each other across the globe—from Britain to Baghdad, from Alaska to Alexandria, from Moscow to Madrid. Spectacular locations and non-stop adventures await!