Osamu Tezuka's "MW"
From 1976, here's MW, one of Osamu Tezuka's most adult works. Yuki and Garai were the only survivors of a poison gas leak (codenamed "MW") that annihilated an island's population. The two escaped before all evidence was obliterated in a government cover-up. Fifteen years pass, but Yuki and Garai are still bound by fate. Yuki is now a charming psychopath who preys on women and children and then uses his Kabuki-honed skills to impersonate his victims, and Garai is a tortured Catholic priest who is Yuki's confessor and lover.
19 scans from a 600-page book. These are scanned from Vertical Inc.'s translation, which is flipped and reads left-to-right. NSFW.