[Waremono] Shinshoku Subway (COMIC Anthurium 2024-11)

An exhausted office worker discovers a seductive, busty stranger on the last train, igniting a reckless affair that shatters his marriage vows and fuels his cheating desires. She flirts boldly in the men's restroom, flaunting her ample curves and a subtle beauty mark, daring him to surrender to the thrill while he battles guilt and the fear of being caught. When his wife unexpectedly delivers a baby a month later, the enigmatic lover disappears, leaving him tormented by memories and the unsettling question of what truly vanished.