Start fighting Zuo Shang after entering. Zuo Shang is a master swordsman, and all his attacks involve flying swords.
Red Light Attack 1: He uses a red light attack when he turns his back.
Red Light Attack 2: Be careful after he thrusts his sword forward, as he will immediately follow up with a second red light attack.
Red Light Attack 3: He releases flying swords in the air, then performs a downward stab with red light.
Red Light Attack 4: Pay attention when bamboo appears around his body; he will use a red light attack once his charge is full.
Block (or run around) when he uses "Unlimited Blade Works"; just don't take all the hits.
There's an easy move when he reaches half health. After he gets on the roof and charges, a QTE will appear; just press it correctly.
Defeating the first phase leads to the second phase. The second phase always starts with a red light attack.
His red light moves are very fast, relying mostly on reaction time.
He also likes to use blue light attacks during his dashes.
Use dodge to avoid the dragon when it appears.
Press buttons quickly when triggering blade clashes.
He fires lasers from the sky. For this move, you basically only need to dodge the last two hits.
Don't let your guard down after defeating him; you still need to complete the QTE.
The game ends completely after watching the cutscene and credits, achieving the true ending (other endings can be found online). At the end, we obtain the weapon "Purple Nether Sword".
Weapon Soul Casting material "Shattered Dragon Body".
Story item "Infinite Brilliant Heart".

