The superhero Deep Black sets out to solve the mystery of the Glory of the Seven Sages paintings. Mystery shrouds the situation and the characters as Deep Black encounters car chases, burglary cases, bomb threats, and meets Ghost, the handsome thief who escapes and slips away from DB.
Deep Black is a completed manga by Mamahara Ellie, first published in 2007. It blends action, romance, boys' love and superhero. You can read all 6 available chapters of Deep Black online for free on MangaPulse; the newest is Chapter 6, added 2021-02-24. The series is finished, so you can read it from start to end in one go.