Jin, 2 1 year-old, is a sophomore in the weightlifting department of Hanergy Sport University. She looks straightforward and bright on the outside, but her heart is full of glass-like sensibility. She is a sentimental girl. Influenced by her father, who used to be a weightlifter, she was famous for her great strength since she was a child. She is a promising weightlifter. However, no one has ever introduced her boyfriend, because she has developed the muscles of lifting weights.