Chae Nayun
She is the granddaughter of the powerful Chae Joochul, member of the 9 stars. She starts at Cube cadet rank 4 while using a bow. Nayun is in the begging using a bow
but Kim Hajin redirect her to the sword because that what’s she is suited for. She also has an enormous amount of mana and a greater mana control that even Kim Suho.