Su Jinxi, the youngest daughter of the Su family in Qingxi Town, Jiangnan, Dayong Dynasty, accidentally picked up a green jade pendant while fetching water in the early morning. However, she lost her footing and fell into the water. She had no idea that the jade pendant had turned into green light and blended into the center of her eyebrows.
After returning home, Su Jinxi was dizzy and found that she could enter a mysterious space measuring one foot square - containing fertile soil, clear springs and thatched huts. She named it "Lingxi Xiaozhu".
After repeatedly confirming that the space could be freely entered and exited, Su Jinxi suppressed her surprise and fear and determined to keep the secret. She quietly took branches of honeysuckle and beans and planted them for trial use. Looking at the clear spring and fertile soil in the space, and thinking about her family's struggle for livelihood and studies, she quietly had the idea of using "Lingxi Xiaozhu" to contribute to the warmth of her family.