The descriptions from the two suits tell a single story from two different persons' points of view.
In the original suit, the narrator is a girl who was abandoned shortly after her birth, but a slightly older boy whom she refers to as "Senior" finds her, and the temple's Master takes her in with the other disciples. When the girl is 15, the temple is attacked by the Master's foes. Senior hides her in a huge clay jar in the yard. She spends two days hiding there and, when she decides to leave, she finds herself the sole survivor of the group.
The recolored suit's story is from the Senior's perspective. As a little boy he finds the protagonist and they're raised together, becoming very close friends. It turns out that Senior is a spy from a rival group, but he still wants his friend (and apparent love) to survive so he hides her in the jar and then dresses up a corpse with his own clothes, going missing from then on.
The unevolved versions explain that the girl, now called Mist Fairy, went to the mountain Tai Chi and placed an elaborately carved stone called the Valentine Stele with all of the memories she spent together with her senior. From then on, people were unsure of the stone's origin, but believed that lovers that prayed in front of the stone would be blessed. Bai Jinjin later visited it, and when she heard the legend behind the stone, she scoffed at it, saying that she and Zhong Lizi wouldn't be separated no matter what they did.
Lunar and Fu Su later went to the mountain to meet the owner of the temple there, who could assist her with crafting the Stringless Guqin.