My Sister Was Killed, I Can No Longer Hide My Identity as a Swordsman

The sword is like a wandering dragon with ten thousand soldiers, destined to die and never look back! Chen Pingan traveled through the world of martial arts and became a high school student with mediocre talent, but he got a system that could improve his swordsmanship by swinging a sword. Swing the sword a hundred thousand times: Congratulations on your realization of the first sword: how much hatred there is in the world, how long can you cry alone at night? The first sword, Hundred Ghosts Night Walk! Swing the sword a million times: Congratulations on your realization of the second sword: slaughter all ninety million mortals, even if the first drop of blood is not cold! The second sword: Wu Sheng! Swing the sword thousands of times:... … Chen Ping'an wields his sword every day, and unknowingly he has mastered the thirteen sword techniques, which he originally intended to be a clumsy development. However, my sister was killed by an adulterer, her cultivation was completely lost, and her whole body was completely disabled. That day, Chen Pingan stepped on thousands of flying swords, and hundreds of ghosts walked behind him at night. Only his words echoed in the world: "I, Chen Ping'an, only have one sword..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.