Virus

Although Virus may resemble Trip a lot, they are not actually twins. Virus' hair is pale blonde, spiked up at the back with his bangs on the right. His eyes are bright blue and he wears a pair of glasses, which are black with green arms. As accessories, he wears a pair of earrings that match the ones Trip wears. His tie is checkered to compliment Trips' clothes, and he wears a fitted black suit, as well as white shoes. Additionally, he wears a Morphine pin on his suit.

Back when Virus was young, he wore oval shape framed glasses and his hair was less spiky. Virus also revealed that his eye color changed after both he and Trip were tampered with, so they would not be affected by Sei’s abilities.

Virus is a quiet person and only speaks when he has something he'd like to say. This doesn't mean that he's selective with who he speaks to, but is someone who can easily come off as being condescending or even hateful. He leaves many things to be desired in his unique ability to keep himself mysterious in his own ways. Virus, out of his own interests, keeps Aoba safe from harm and has a bit of a penchant for taking interest in things that are different. His interests often keep him and Trip very close to the person, the two of them sharing many of the same mindsets when it comes to what they're looking into.

Virus is not an overly violent man but is clever and can easily outsmart his opponent in various ways. Other than that, he'll protect himself if himself or Trip is attacked, though he does believe Trip can easily take care of himself. He is very close to Trip and even though they claim to not be twins, he doesn't mind the other being around him and following him everywhere.

When it comes to talking about himself, Virus usually tries to steer the conversation away to something else as politely as he can manage. He doesn't snap and if he does, it usually takes a lot of poking and prodding from someone to send him over the edge in some fashion. Although, he doesn't hold onto his anger for long and simply finds other ways to punish the person.

Virus first met Trip after Tatsuo Toue took them in. Virus, together with Trip, already knew about Aoba Seragaki for some time at that point. The two of them had been friends with him, back when he was still a teenager doing Rhyme, specifically after Koujaku left the island. Astounded by Aoba's strength in Rhyme, he and Trip investigated on him and came to a conclusion that both Aoba and Sei had the same potential. Deciding to hide Aoba for themselves, they both made him forget about the past.

Virus and Trip remained as Aoba Seragaki's friends as they sometimes bump into him in the Old Resident District and show their interest in him. Later on, they appear to help Aoba and Koujaku escape from the police from Dry Juice's hideout. Virus is also the one who calls Aoba, informing him about Akushima's plan to imprison the latter. He later reveals that they are a part of Morphine and are working on behalf of Tatsuo Toue. Aoba, on the verge of defeat, is saved by Koujaku, Noiz, Mink and Clear. Afterwards, Virus and Trip disappear without a trace.

(https://dmmd.fandom.com/wiki/Virus)