Alternate apocalypse. Harper Arai is a cold-blooded assassin with poor health but a love for money. She originally planned to do one last job before quitting but ended up encountering her seriously injured, barely alive arch-nemesis at the scene. Since the mission had already failed, Harper decided to double-cross, trying to take an important token from her nemesis's hand. "Who—who are you?" The person, face covered in blood, used their last bit of strength to grab her hand, sounding utterly confused, "It hurts so much, could you take me away?" Harper: "????" Harper thought, sparing your amnesiac self is already my greatest kindness. "I'll give you money, lots and lots of money. Do you like money? Will you take me away, please?" Harper Arai compromised—she was broke, and she really loved money. — After bringing the person home, Harper discovered that this guy had lost his memory and, even worse, his personality had completely changed—he had become like a clingy little puppy. Since he remembered nothing, the promised money couldn't be paid back. - "Baby, who’s that person with the gun over there? I'm so scared!" Harper sighed speechlessly, casually taking down the hundredth enemy who had come looking for trouble. — At first, he truly had amnesia. Later, he was only pretending to have lost his memory.