Synopsis
After several years of marriage with Ai, I’ve recently noticed her becoming self-conscious about her body, despite being naturally slim. When she insisted on trying a personal gym, I reluctantly joined her. However, I quit after a short time due to my poor fitness level, leaving Ai to continue alone.
My anxiety grows as she trains one-on-one with a muscular trainer. Day by day, her gym wear becomes increasingly revealing. Suspicious by nature, I secretly placed a voice recorder in her bag to monitor the situation…
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