[TK-142]

[Rationality Collapse Muscle Training] "Eek, hyahahaha! Nooo, I'm gonna break!" Yurina Wakabayashi's exquisite body screams with laughter. A guaranteed total defeat as her defenseless armpits and chest are attacked during squats.

A stoic married woman proud of her toned physique, Yurina Wakabayashi. But beneath the sports bra that wraps her body, there lay an uncontrollable frustration and a secret "ultra-weak sanctuary." As she repeats squats and sit-ups on the soft bed, an inescapable assault of stimulation suddenly attacks her limbs. The targets are her defenselessly exposed armpits and the depths of her trained abdominal muscles. "Ufufu, ahaha! Ahahahaha! I'm losing it!" Though she initially puts on a composed front, the finger and massage gun attacks gradually strip away her sanity. In particular, the fierce assault on her heaving chest and overly sensitive sides shatters her bravado into pieces. "Hii, hyahahaha! No, I'm breaking! Ahahahaha!" In the end, even her trained muscles become uncontrollable by her own will. Her whole body trembling from the vibrations of laughter, writhing with tears in her eyes—there is no trace of her former stern demeanor left. With sweaty skin, ragged breath, and after an endless baptism, what she reveals is the breathtakingly beautiful sight of surrender to irresistible pleasure.