The "Bucktooth Sister" from Chloe Grant's mouth is her little friend she met in Country A.
Chloe Grant was born in Country A, and when she originally came back to study, her parents were too busy, so they entrusted a friend to bring her back.
And that friend was Bucktooth Sister's mom, and it was this moment when she met Bucktooth Sister.
Later, the two of them attended kindergarten and elementary school together, and by middle school, Jodie Cooper, because of poor grades and lack of interest in studying, directly told her parents she wanted to go abroad, and since then, she has been a genuine big boss in Country A, occasionally returning.
Bucktooth Sister's nickname came because her two front teeth looked like a little rabbit's before she changed them.
Her real nickname is actually "Little Rabbit," but Chloe Grant liked to tease her by calling her Bucktooth Sister, or Little Bucktooth, Little Buck...