Shocked, My Deskmate Is Actually a Swordsman

Lin Ye, an ordinary high school student, bumped into his classmate Chu Yue one day, holding a long sword and confronting a terrifying snake demon that spoke human words! To make matters worse, the snake demon is targeting him! Underground in Yunzhou City, the special crack called the "Xuanyuan Cleft" is quietly expanding. Can this cowardly high school student defend his classmates and this city?