Mondo Owada

At the beginning of the Killing School Life in Danganronpa: Trigger Happy Havoc, Mondo appears to be a young high school-aged teenager, but due to the memory loss, he is two years older than he believed. He has slightly tanned skin and a tall, muscular build which gives him a bulky figure. He wears his hair as a dark-brown punch perm with a styled-1960s pompadour. His pompadour is approximately fourteen inches when compared with his shoulder width which can be estimated to be around fourteen inches. He has a deep-ridged black eye-line circling his purple eyes, which gives him an intimidating appearance.

Mondo's outfit reflects that of a typical Japanese biker gang member (暴走族 bōsōzoku), comprising of a high-collared black long overcoat known in Japan as "tokkō-fuku" (特攻服), adorned with the symbol of The Crazy Diamonds along with kanji (more specifically 暮威慈畏大亜紋土, ateji for "Crazy Diamond") and dragon symbol motifs colored orange on the back and side, worn open over a white A-shirt. He wears baggy black pants held up by a belt and his shoes are white loafers. The buckle of Mondo's belt is shaped like the face of a Komainu.

During his school years, he wore boxer briefs. The underwear has a snug fit which is ideally suited to motorbike riding. His boxer shorts have a tiger stripe pattern with a white rim and line patterning, which appears to be a reference to the tiger theme of his execution.

His swimsuit in Danganronpa S: Ultimate Summer Camp consists of a pair of black bermudas with orange dragon symbol motifs along the edges of his pants. On the left is the symbol of The Crazy Diamonds.

Behaving like a stereotypical delinquent, Mondo is foul-mouthed and can come off as a rude and intimidating individual. When Makoto first met Mondo he did his best to keep the conversation short, as he realized Mondo could become easily aggravated depending on what was said. He is very easy to provoke, and will not hesitate to resort to violence if he starts to lose his patience. This is shown during his interactions with Byakuya who acts condescendingly towards him, prompting Mondo to fight back without considering the consequences.

Just like Chihiro, Mondo has a severe complex about being seen as weak, which he represses by constantly repeating in his mind that he is strong. This complex stems from the fact that his gang members tended to look down on him due to his status as the little brother of Daiya, the first leader of The Crazy Diamonds. Mondo ultimately caused his brother's death in a street race by acting rash in oncoming traffic, prompting Daiya to save Mondo in exchange for his own life. It was Mondo's own weakness who caused Daiya's death and this constant burden was placed on him, as he had to live with and share the lie with the rest of his members that it was Daiya who had acted rashly.

Mondo states that he tends to be very nervous around girls that he likes, causing him to raise his voice and ultimately scare them away, something that has happened at least 10 times already. This potentially shows that Mondo is shy around new people and is unaware of how to relinquish his ruffian type personality while in calmer situations.

Mondo has a soft spot for dogs and had one named Chuck during his childhood however he died at 9 years of age. When speaking with Makoto about his dog, Mondo becomes very emotional and has no choice but to leave the conversation as he was beginning to tear up. Makoto stated never seeing him in such a way before, showing a softer and emotional side to Mondo's personality that he tries to avoid presenting to others. He states in a Free Time Event that he likes both cats and dogs but prefers dogs.

His final Free Time Event reveals his insecurities over his future. He believes that the only choice for him once high school is over is to get a job and decides that he would choose to become a carpenter since he wants to start making things instead of breaking them, showing that in a sense Mondo wishes to reform his personality and help make a difference without aggression or violence.

As the Ultimate Biker Gang Leader, Mondo possesses several skills related to his profession including physical strength, endurance, and motorcycle knowledge as well as a particular sense of honor and loyalty to his gang. Mondo built up his reputation off of his brother Daiya, who was a great motorcycle rider and leader himself. Mondo became a skilled biker but only after becoming the leader of the Crazy Diamonds and he was able to then sustain the group as the number one gang in all of Japan through time and effort. He most likely trained his own members to become skilled bikers given the fact as the leader of his gang he had to set the example in order for them to graduate.

Powerful Physical Strength - Mondo has a bulky build and a large amount of muscle which greatly aids his robustness. During the Killing School Life, Mondo showcases his powerful strength in different ways. He was able to knock Makoto unconscious with a single punch and was able to throw Monokuma to a far distance in the air despite him having a weighty mechanical structure. Despite Mondo's physical capabilities, he is only able to meet a certain threshold. When Makoto suggests he spar with Sakura, Mondo ultimately refuses due to 'not wanting to hit a girl' however Sakura is easily capable of matching if not surpassing his strength. Mondo is always willing to challenge others to a fight, such as Byakuya and Kiyotaka due to his confidence in his physical prowess.

Excellent Endurance - Mondo requests he and Kiyotaka have an endurance contest to see who can last the longest. Both he and Kiyotaka stayed in the sauna for a considerable amount of time and Mondo even kept his clothes on, showing his large amount of endurance during high temperatures and potentially in the heat of a fight. Mondo once mentioned getting into a brawl with the police due to being too slow on his motorcycle and getting caught when he was only a new member of the Crazy Diamonds, despite a large amount of police he was still able to escape.

Knife-Throwing Skills - In School Mode, Mondo compares darts to throwing knives and will then say he can throw a knife with his eyes closed, meaning he's very good at it.