As a killer, you can kill for various reasons such as money, reputation, love and hatred, party affiliation and dissent. Killers can be divided into three, six or nine levels for what they kill for. Killing for money and sex is the lowest level, killing for family reputation and personal honor is a higher level. Killing for the sake of political party affiliation is another level. Killing to protect the family and country will be respected by others.
But "a man will die for his bosom friend" is the highest creed of every top professional killer. In their eyes, those who kill for other reasons are low-level killers, no different from the gangsters on the street. However, on the road to becoming a top professional killer and being respected by his peers, few people can kill for the sake of "dying for a confidant", because most killers die when they reach the point of "finding a meal".
Intention: The life and death grudges between killers and employers, one careless move and everything is lost, no distinction between right and wrong, only life and death