The time when the beautiful niece Izumi visited her uncle's family was also the most haunting time in her uncle's life. In an accidental encounter with his grandson changing clothes, he discovered something so astonishing that even he couldn't believe his eyes, he had seen a penis from her genitals. Unfortunately, at that moment, she also saw it unintentionally, so suddenly mixed with a little embarrassment, he only knew how to hide right after. It wasn't until her psychology gradually stabilized that her grandson decided to tell him the whole story, that she had undergone gender reassignment surgery but only on the genitals. She was sad and happy, sad that she was no longer like other women, glad that she was able to live with the gender she wanted, but most of all, the uncle was more inclined to celebrate because her personality had completely changed since the surgery. She was extremely lewd, constantly arousing her uncle with various sexy actions, at first he felt extremely disgusted, often avoided but gradually he also understood that now was the time when she needed the most help from her family members. Despite everything, he decided to do whatever his grandson wanted. What a kind uncle.