Color:

13-storey Xueba Series (to be no. 1)

13-storey student bully series (must pass every exam)

13 layer examination series (beige)

13-layer examination series (purple)

13 layer examination series (blue)

Learning on the 13th floor (come on, scholar)

13-storey discipline series (green)

13-storey discipline series (pink)

13-storey Xueba series (future)

13-layer discipline series (orange)

13-storey Xueba series (win the first prize at one stroke)

13 layers of Chinese wind (cloud travel like brocade)

13-storey discipline series (blue)

13 layers of Chinese wind (deer territory)

13 layer examination series (green)

Chinese wind on the 13th floor (fish in the north ghost)

13-storey Xueba Series (Riding the Wind and Waves)

13 layers of learning (no fishing)

13 layers of glutinous rice rabbit (happy eyebrows)

13 levels of learning (more active tomorrow)

13 layers of learning (addicted to learning)

13th floor Chinese wind (with crane return)