This is a documentary video of bondage filming using a real masochistic woman. While actually tormenting a masochistic woman, we pursue strict and sensual beauty through bondage and punishment. This work is a 4-hour tight bondage training documentary filmed as a bonus DVD for the hit SM photobook "Heavenly Erotic Flower Yukino Matsu". It starts with a strict reverse shrimp tie, followed by anal hooks and neck restraints, and then a human candlestick using temple candles and harsh punishments. Yukino Matsu responds sensitively and seductively to all of this, indulging deeply in the pleasure of M while covered in tears and saliva. She repeatedly wets herself, panting "I'm sorry" while trembling with pleasure, and even climaxes at the smell of her own urine. Her whimpers, tears, and spasms in her lower abdomen, and the sight of her kissing the man's toes stained with her urine, tears of joy streaming down her face, is truly a sight that can only be called a "true M woman," a beautiful flower blooming in lust. This is a record that captures Yukino Matsu's deep masochism without reservation.