Shiori, lived with her parents until she was 24. One day, her father, Tadashi, suggested that Shiori go on a blind date, saying he had found a good man. Tadashi had recently been worried because his daughter's "mark" was missing. Shiori had a peculiar condition where the tip of her nose would always turn red the morning after she had sex. The man was a quiet man named Yukio. After a quiet blind date, the two got married, with Yukio becoming the son-in-law of the family. However, Shiori had not broken up with her former lover, Shunji. Or rather, she couldn't break up with him. Yukio didn't notice his wife's "mark." Then a turning point came for the couple. A famous actress held a press conference announcing her divorce due to her husband's infidelity. Her husband had the same symptoms as Shiori. A weekly magazine titled "Infidelity Exposed! Pinocchio's Nose" became a bestseller. Shocked, Shiori tries to end her relationship with Shunji, but...
