~Nagumo Yoichi~

Nagumo's most notable traits are his laid-back attitude, accompanied by a constant smile that seems impossible to erase from his face. He also has an incredible talent for annoying those around him to the point of making them wish for his death. [ 11 ] [ 12 ] [ 13 ]

Nagumo is also shown to be quite carefree, even in the midst of intense battles, once claiming to enjoy the wind in his hair while stabbing a man in the arm. [14] He is also very playful with his opponents, as shown multiple times. For example, he evades and outsmarts Minimalist, a hardened serial killer, before handing him some dice to decide which of his swords he would die by. [15] Another example is during his fight against Gaku, where he asked the latter if he liked Bruce Lee after receiving a one-inch punch.

However, when it comes to matters involving his friends, Nagumo tends to reveal his true emotions. One such example is when he pulls Uzuki from Takamura's cutting line, wondering why she saved him despite him being a dangerous serial killer, influenced by the fact that a part of Rion Akao still resided in Uzuki's body. In fact, Nagumo has shown deep fondness for his old friends Sakamoto and Rion since his time in the JAA, still thinking about her even after her death was confirmed. This is also confirmed in their encounter during the Century Arc Assassin Exhibition, where, once Rion took control of Uzuki's body and spoke to her, Nagumo immediately recognized Rion's personality and questioned her identity.

Nagumo believes the key to killing is "deception",[16] despite claiming to abhor it.[17]

Despite this, Nagumo has a colder, more serious side. He acts according to his own interests most of the time, and sometimes commits unethical acts.

Nagumo is a tall, thin, and attractive man with medium-length black hair and large black eyes. He wears a red polo shirt with teal, white, and black triangular patterns under a cream-colored trench coat (in the manga, the shirt is white with red and navy patterns, while in the digital version, the shirt is light blue and the coat is brown), navy blue pants (black in the digital version), and black shoes.

He occasionally wears a white button-down shirt with a black tie under a black suit (dark green in the manga) (in which he sometimes omits the suit and tie). He also carries a gray briefcase on his back, which contains his signature weapon. [ 7 ]

At 14, Nagumo already appeared taller and thinner before reaching adulthood. His attire typically consists of a black T-shirt under a yellowish-orange jacket with black chain designs, navy blue shorts, and wooden sandals. He also has several tattoos with mathematical meanings, most of which are hidden by his clothing.

] is a major supporting character in Sakamoto Days and an old friend of Taro Sakamoto and the late Rion Akao . He is first seen visiting Sakamoto to inform him of his bounty [ 6 ] and was revealed to be a member of the Order before losing his position during the Century Assassins Exhibition Arc .