The story starts out with Sai’s mother, who becomes involved with her adoptive parents' son. She gets pregnant but he wants nothing to do with her and later marries a wealthy woman from a good family. Sai’s mother gets sent to live back in a small house behind the mansion, she gives birth to Sai. Later on Sai’s half-sister is born and named Looksorn. Sai’s mother decides to start a fresh new life and runs away from the family when Sai was 12 or so, there Sai meets her knight and shining armor in Bee who comforts her and gives her a musical box, from there she always remembers him as her “first love”.