The Gate of Life and Death: Love by the Green Waters

The Separation Gate values life lightly, accepts gold and silver, and trades for human lives. The Separation Gate is a notorious assassin organization in the martial world. In truth, no one knows that the Separation Gate has only nine members. If people knew that the organization keeping them awake at night consisted of just nine people, they would probably die of shame. "Do you know what the most painful thing in life is?" their master, the leader of the gate, asked softly. "The most painful thing in this world isn't death. It's tearing two people who love each other apart while they're still alive." They saw clearly the hatred in their master's eyes as they spoke, along with... pain. "The Separation Gate was born from that. From the moment you enter the gate, you are destined to live your whole life without love. If you fall in love, I will do everything in my power to tear you apart while you're still alive."