Sword Song: Glory and Rainbow

On the first day of time travel, the whole family was executed. The system gave me a hundred days to catch the murderer and survive. But as a history graduate student, what can I do to hunt down the most powerful villain in the world? Fortunately, it is bound to the [Strongest Chivalrous System] - chivalrous points are gained from solving crimes, and chivalrous points are exchanged for magical skills. I just didn't expect that the first person to believe in me would be that cold princess. She was ordered to monitor, but she blocked the fatal sword for me. The more I investigated, the more frightened I became: behind the massacre, there were hidden the late emperor's edict and one hundred thousand private soldiers. The enemy is not the devil, but the current prince. Countdown to a hundred days, I stand on the top of the Forbidden City—— This sword was not for survival, but for her and the world. "Sword Song": A mortal's road to becoming a god.