As he moved to Tokyo to pursue his dreams, our protagonist found himself living alone for the first time. However, he quickly realized that cooking, cleaning, laundry, and even simple tasks were beyond him compared to his homely upbringing. Feeling sorry for her son, his mother asked her sister Yumi to help support his independent lifestyle. Our hero had always harbored feelings for Aunt Yumi, whom he hadn't seen since childhood. Imagine his surprise when she suddenly appeared at his doorstep, ready to start a joint life together! But as they began their new arrangement, he couldn't help but become increasingly aware of her vulnerable body...