|“||You jest, captain. We are the Hi Shin Unit. If it's where the captain is headed then we will accompany you no matter what deathtrap it may be!||”|
So Sui is one of the central figures within the Hi Shin Army, and a 1000-Man Commander. He was allowed to retain his rank as a lieutenant, after the 700 soldiers of the defunct Kaku Bi Unit were added to the newly promoted 1000-Man Commander Shin's, Hi Shin Unit during the Sanyou Campaign Arc.
So Sui has a small goatee, a mustache, and a scar across his left eye. He has long black hair. He usually wears the standard Qin commander's attire and a bright-colored cape.
So Sui is a serious and very responsible person. He has an eye for detecting capable individuals, whom he selflessly follows in order to serve his state's interests. He serves Ri Shin faithfully, just as he did with his deceased lord.
So Sui was the second in command in the Kaku Bi Unit. After Kaku Bi was slain by Rin Ko, he joined the Hi Shin Unit with 700 men of the former Kaku Bi Unit. He was shocked at Kyou Kai's strategic plans set during the preparations, calling her a genius.
Prior to the first battle in the Sanyou Campaign, So Sui informed Shin that their opportunity to take the needed heads of enemy commanders may soon come as the Hi Shin unit would be part of the second attack wave. After Gen Bou's smokescreen halted their momentum, he told Shin that they had been outplayed, as they had been robbed of their vision and the men couldn't move due to this. When Kyou Kai revealed the trick used to track them, Shin got the men ready to target the enemy commander's position, and took the cavalry unit with him to do so. So Sui objected at first, but joined in the attack and ordered the Retsu Brothers to defend Shin as they charge at Gen Pou. They almost reached Gen Pou before falling prey to another of his traps hidden in the ground. On the fifth day of the battle, he charged in with Shin and his men was fired up to confront the man that killed their late commander. He held the path open with cavalry from the Hi Shin unit, battling Wei troops while Shin headed in to fight Rin Ko. Kyou Kai came to his rescue as they retreated from the Wei lines.
On the sixth day of the battle, he fought along with the Hi Shin unit as they halted Rin Ko's charge, after the Wei general used the Rindou. As Shin dueled Rin Ko, So Sui halted any unit members who tried to help, stating that they would disgrace Shin by doing so. Seeing Gi Ryou attempting to interfere with the duel, So Sui cut him down with his glaive, but was then injured by Rin Ko who reacted reflexively to his presence.
Put in charge of organizing the logistics and supplies of the Hi Shin Unit
During the Battle of Kankoku Pass, So Sui and 150 of his cavalrymen were directed by Ka Ryo Ten to cut off Man Goku's escape route. They were instrumental in stalling the Zhao soldiers trying to escape with Man Goku, and the time was utilized wisely, resulting in Shin slaying Man Goku in combat. The Hi Shin Unit then retreated and escaped retaliation from the angry remnants of the Man Goku Army.
So Soui is seen spitting out his drink along with the rest of the shocked Hi Shin Unit when Kyou Kai declares her intentions to having Shin’s children.
On the first night of the Battle of Koku You Hill, So Sui was seen asking Shin about Kyou Kai's whereabouts. On the third day, he was attacked by Ba Tei and put out of commissions for the rest of the campaign.
After completing his own quota for new recruits, So Sui is seen disappointed at how lax Ten and Kyou Kai were in their own selections.
So Sui is proficient in the use of a glaive and was able to decapitate Gi Ryou with a single strike.
So Sui can command troops effectively in battlefields.
He is capable of handling the unit's strategic tactics. Prior to Ka Ryo Ten's arrival, So Sui was responsible for organizing the logistics and supplies for the Hi Shin Unit.