What is the origin of Xu Mengjie's name "Little Rainbow"?

The origin of Xu Mengjie’s name is:

Because Xu Mengjie’s English name is Rainbow, her teammates call her Rainbow.

In addition, she looks sweet, loves to laugh very much, and has very beautiful eyes. When she smiles, her eyes are curved like two rainbows, so her fans have always affectionately called her Little Rainbow, or Rainbow. My sister, Rainbow Barbie.

Character evaluation:

Xu Mengjie, a girl with crooked eyes when she smiles. Her performance in the girl group competition show "Produce 101", her fresh and sweet appearance and dynamic and personalized dance made fans remember this hard-working, freedom-loving girl at a glance. The audience more affectionately called her "me" 101 Girls".

It is said that girls who love to laugh will not have bad luck. Xu Mengjie, who never forgets her original intention, is also proving herself step by step. She should not forget her original intention, move forward in pursuit of her dreams, turn against the wind, and live towards the sun. She has a colorful, clear and sweet appearance like a rainbow, a dynamic and unique dancing ability, and a bright smile with self-healing power that pleases people. She is a healing girl who loves to laugh.