Su - Honkai Impact

He is a MANTIS and a scientist of MOTH from the Previous Era. Ranked 7th among the Thirteen Flame-Chasers, his codename is "Bodhi".

Su appears as a young man with a fair complexion. he has knee-length gray hair, His eyes are fuchsia-colored with green pupils, although they are often closed.

Su's clothing consists of a black polo with gold details on the collar and breast pocket with a white sash over his left shoulder. The sash has a gold pin on the shoulder. On his left ear, he wears two black helix earrings and a gold hoop earring. He wears loose gray jeans fastened with a black belt with a green detail. On his belt, he appears to have a dream catcher hanging from his left side, and two other trinkets on the right side. On his right hand, he wears a dark-gray glove, while his left hand is bare. His left hand is decorated with several types of symbols, including a tattooed ring on his index finger. He wears white boots that reach up his calf.

When Su works as a doctor, he wears a lab coat, a white shirt, and black leggings. During his time at MOTH, he was seen wearing the standard lab coat, white gloves, a black long sleeved polo, and black pants.

Su is a very calm, serene, wise, kind, and polite man. Unlike his fellow MANTISes, he was not a fighter and wasn't willing to fight unless it was deemed necessary, as shown as he was amicable to Durandal until she refused to follow his plans. Similarly, he wanted to talk with Kevin and appeal to him, asking him to stop Project STIGMA, until Kevin fought back.

When he is serious or ready to fight, he opens his eyes.

Su believes that no one has the right to play as a god or decide the fate of humanity. He also cares deeply for his friends and allies and shares compassion for people as a whole. Kevin describes him as someone who's consciousness weeps when innocent people die, as he was distraught that the reason why he survived Honkai sickness was due to the sacrifices of other people who died from Honkai sickness, as well as opposing Project STIGMA. He made medicine for Dr. MEI when she was suffering from Honkai sickness and was able stall the sickness for a long time, and promised to her that he will stay by Kevin's side and help Kevin to stay on the right path. When he deemed that Kevin was going too far, he honored Dr. MEI's wish and confronted Kevin, resulting in a physical fight between the two.

Despite it all, he still regards Kevin as his best friend. When he was thrown out of the bubble world by Kevin, for a brief moment he sees a younger version of Kevin smiling at him through the cold and distant stranger he thought Kevin was, realizing that the Kevin he was friends with never left. In his final moments, he reflects on his bond with Kevin and the one leaf that he wants to hold dear is one with him and Kevin in high school.

In his younger years, he was persistent, stubborn, and selfless.

Su was a doctor at Ninth Hospital for previous 2 years. He'd been working tirelessly to try and cure the Honkai Sickness. On a certain day, Su was assigned to a 10 year old girl named Annie who was infected with Honkai sickness, who he promised to find a cure for. He then was called into a surgery for another patient, which failed, leaving Su feeling terrible. He's then approached by a Mr. Long, a MOTH member, who asks for the patient's body.

Entering the world as a physician, begin to speak with kindness as a sign. Looking at the three thousand worlds, this wise man who has always closed his eyes and thought will eventually become the power of Tianhui for a moment.