Byakuya Togami is a character in Danganronpa: Trigger Happy Havoc, and his title is the Ultimate Affluent Prodigy. Byakuya is a cold and self-centered person who is very reserved. He is not interested in co-operating with others due to his own sense of self-superiority, and his opinion that others are, on the whole, lesser than him. This sense of superiority and black-and-white worldview comes as a result of his upbringing; Byakuya had to prove his worth in battle against his siblings to earn his role in the family as heir-apparent, whereas all his other siblings who lost the battle were effectively ex-communicated from the family and cut off financially. Because Byakuya was raised in such a highly competitive environment of "haves" and "have-nots", he thinks all people only think about themselves and dismisses emotional ties as petty and unimportant. Due to his lack of emotional ties with the other students, Byakuya was able to emotionally distance himself from the horrors of the Killing School Life and thus proved to be one of the most competent and insightful investigators in the group due to his high level of intelligence. His compulsive competitiveness caused him to treat the Killing School Life as simply a game, and one he fully intended to win, just as he had won his battle to become the head of the Togami family - much to the disgust of the other students. Byakuya's emotional detachment and lack of empathy towards others sometimes made it very difficult for him to understand the reasoning for why people would behave altruistically or based on pure emotion; this came to a head during the case of Sakura Ogami's death, where he could not understand why someone would be willing to give her life to save their friends, or why Aoi Asahina would be willing to sacrifice herself and the others' lives purely to avenge Sakura's memory. This detachment would thus sometimes make him zero in on red-herring suspects and aggressively pursue them simply because he could not imagine an emotionally driven motive. Sakura's case acted as a real turning point in Byakuya's approach to the Killing School Life, going from treating the other students as his enemies in the game, to focusing his energy on identifying and destroying the Mastermind. Byakuya can sometimes appear comical due to how serious and dramatic he can be with his words and belief in his superiority and how it frustrates the other students, and especially with his interactions with Toko or Genocide Jack. He constantly referred to the other students as "amoebas" and "plebeians". It also appears that he was taught strict manners by his family, as in the first game he refused to use swear words and once said "effing" to avoid repeating Mondo's language, and is generally disgusted by vulgar words and behavior, and anything he considers barbaric. Due to his unusual upbringing, it's been shown that he has a bit of poor knowledge of certain things that are considered common knowledge. He is confused by the idea of people making their own food, as his food is always prepared by a chef, and he doesn't know what toy vending machines are. Despite his cold attitude, he does not look down on his many half-siblings, instead feeling some respect towards them. Despite still maintaining his cold and dismissive demeanor towards others, the Killing School Life did appear to alter his worldview and make him more respectful and cooperative with others, though still denies that they are his friends.   

However, his newly developed sense of respect for others did not appear to ever extend towards Toko Fukawa. Toko and her alter ego Genocide Jack, developed an extremely unhealthy obsession and attraction Byakuya not long after meeting him, and she began stalking him and calling him her "Master". Her feelings were entirely unreciprocated. Byakuya was disgusted by her, particularly because she rarely bathed. Byakuya normally distanced himself from others by insulting them, but this trait attracted Toko even more, openly inviting him to debase and degrade her and perceiving it as simply a "lover's quarrel", which made him unable to shake her off. His attitude towards Toko highlighted his manipulative streak, taking advantage of Toko's obsession to make her do menial tasks for him while having so little respect for her that he outed her identity as Genocide Jack to Makoto and the others almost as soon as she revealed her secret to him in confidence. Unlike the other survivors, his opinion of her did not soften after the Killing School Life ended, although he did appear increasingly apathetic towards her rather than combative - even after Toko helps to rescue Byakuya from being held captive by the Warriors of Hope. However, while later discussing the events with Makoto, he accepts that he owes a debt to Toko and Komaru for saving him.

Voices for Reference (ENG): https://www.youtube.com/watch?v=i53gHp5hV1c 

https://www.youtube.com/watch?v=4hEzI0NVv8M

Voices for Reference (ENG Anime): https://www.youtube.com/watch?v=rjK_Rpjzd38 

Voices for Reference (JPN): https://www.youtube.com/watch?v=-JsxMBOEHNs