Hello, the pick today is the Seinen Mature Action manga from the 80's "Crying Freeman".
This manga is about Yo Hinomura an ordinary Japanese potter until the Chinese mafia turned him into the deadliest killer of the 108 Dragons. He is known as the "Crying Freeman" because he sheds tears after killing his targets as a sign of remorse.
One day when eliminating one target he is seen by one Japanese young woman while painting the landscape, Yo naturally marks her to be killed. But Yo ends not only by not killing her but even protecting her. How far will Yo go to protect this woman ...

Description:

Yo Hinomura was an ordinary Japanese potter when a run-in with a Chinese mafia changed his life forever. Now an assassin for the 108 Dragons, Yo is the perfect killing machine. As a sign for remorse over his victims, he sheds tears after eliminating his targets. Because of this, he is infamously known by the Dragons and every other crime gang as "Crying Freeman".