What should I do if I have sex with the woman next door for three days while my girlfriend is traveling? DASS-434

She had an affair with a friend. After being discovered, her next-door neighbor, the novelist Mayari, comforted her. Under Mayari's comfort, they had sex. In the three days before her affair ended, the distance between them rapidly closed, and they talked and made love like lovers. However, their worlds were separated by a door. If they had made different choices, they might have had completely different lives. With each choice, countless versions of her exist—parallel worlds (multiverses)—and the story of Tachibana Mary finally begins.