[Sweet and Refreshing][Single Female Protagonist] Zhang Qingyang, a disciple of Qingfengguan, possesses Taoism and hides in the campus. He originally just wanted to protect his junior sister Ruan Qingwan in peace for the rest of her life, until the ferocious beast in "The Classic of Mountains and Seas" tore apart daily life and turned the campus into a battlefield. A flash of sword light killed the ferocious beast and also cut off his ordinary youth...
From then on, the young man entered the mortal world with his sword, but behind him he was always followed by a girl setting up a formation.
A very nice book.