As a salaryman, I was having dinner alone tonight as usual. My wife, who works as a manager, prioritizes her job and we don't spend much time together. When she does come home, she's exhausted from releasing stress through intense physical intimacy. My sister-in-law Azusa, noticing our situation, often came to visit. Naturally, our conversation turned to our married life, and I found myself being teased in my private area by Azusa, who had a devilish smile on her face. Then, she whispered in my ear, "If you can hold back your ejaculation for 30 days, you can say you like me..."