Ye Qingmei actually called Wu Zhu like this.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. They had deep feelings for each other, relying on each other and caring for each other.

Ye Qingmei called Wu Zhu "Little Bamboo". This was a manifestation of their close relationship. Ye Qingmei was very friendly to Wu Zhu, and Wu Zhu was loyal to her. They had deep feelings for each other, relying on each other and caring for each other. This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. Even though Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted privately. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. The relationship between them was not only that of master and servant, but also that of brother and sister, good friends and lovers.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. There was a deep relationship between them, and Wu Zhu was loyal to Ye Qingmei.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. There was a deep relationship between them, and Wu Zhu was loyal to Ye Qingmei.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. This form of address and intimate relationship was frequently mentioned in the drama, showing Ye Qingmei's special feelings for Wu Zhu.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. This form of address and intimate relationship was frequently mentioned in the show, but the specific reason was not mentioned in the search results provided.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. This form of address and intimate relationship was frequently mentioned in the drama, showing Ye Qingmei's special feelings for Wu Zhu.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. Ye Qingmei often called Wu Zhu "Little Bamboo" and was very friendly to him. This form of address and intimate relationship was frequently mentioned in the drama, showing Ye Qingmei's special feelings for Wu Zhu.

Ye Qingmei called Wu Zhu "Little Bamboo" in "Celebrating Years". This form of address showed how close and friendly Ye Qingmei was to Wu Zhu. There was a deep relationship between them. Although Wu Zhu was Ye Qingmei's servant, they were more like family when they interacted in private. This form of address and intimate relationship had been confirmed many times in the drama.