A Certain Knowledgeable Wiki [Code Vader/Unknown Actor] (Wiki)

Kihara Akuma

Relationships

Tedashii Hamasaki
In crazy twist Akuma hate and loves Tedashii. He is obsessed with him claiming that Tedashii knows him better than anyone in Academy City while he believes he knows him more than anyone else in Academy City. He somewhat shows proof of this kind of bond by easily locating Tedashii, and even quickly realized he was Code Vader after he tried to hack the tree diagram along with having Akahana moments later, calming Tedashii is the type of person to aim big and after failure, moves forward with a new plan already in motion. This could be for that reason why he loves when Tedashii out smarts him. He even goes far to keeping Tedashii's secret as Code Vader from Musujime Awaki. He also considered him a possible candidate for the Kihara name, wanting to pass on his name to him in some kind of way. Treating him in some cruel twisted way like a son making fun of him for spending time with Akahana after ease dropping on them while criticizing himself for not teaching him sexual intercourse.
He still however sees Tedashii as disposable Calling him a entertaining star lab rat that will eventually burst and die off. After the Dark May Project attack he felt betrayed by Tedashii and sworn some form of vengeance towards him (But still be kept alive, if possible. and if does dies it wouldn't effect him in any other way.) This also contradicts the times he does tries to kill him.

Kuroyoru Umidori
Kuroyoru Umidori was considered a delinquent whose rebellious attitude pushed the program to bankruptcy. This spark hate within Akuma. Akuma always hated her before and since then for making the project a living hell. And even calls her out her name as a whore who needs attention like a baby, and a cunt. After she and Tedashii killed most of the researchers Akuma sworn absolutely vengeance promising to kill her once he sees her again.

Kihara Amata
Being the mentor of Accelerator and the one who gave Accelerator his abilities, Akuma despise Amata's fame and believes any one could have developed Accelerator. He considered Accelerator a build in success due to the incident of Accelerator being attacked by a army at a young age without being harmed. This spark jealousy that eventually grew into hate.

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Chronology

Background

It is known that Kihara Akuma was a researcher of the Dark May Project and work to help Espers improve their abilities with Accelerator thought patterns. Despite how ruthless he is towards Tedashii his efforts of trying to get him to cooperate could hint that he had a positive relationship with him until the horrors of the experiments finally took place. He was eventually attacked and was a survival victim from Tedashii Hamasaki and Kuroyoru Umidori's assault. After surviving he hid in secret playing dead and depositing his clam life insurance after being in debt due to the Dark May Project and aim and scorn for vengeance.

A Certain Scientific Code Vader

Tedashii Past Saga Arc
TBC (will be Updated soon)"

Tree diagram Remnant Arc
Akuma first appears in this arc watching Tedashii and Akahana leaving being puzzled to why Tedashii is just casually watching with data mine he calls and tells the science Associate that he's ready. Once more continues to watch him as Tedashii take her to the walk, eager to hurt Tedashii he calls Musujime for assistance to allow him to target Tedashii with out any interruptions.

When Tedashii prepares to head out after buying a Akahana more clothing Akuma hack into the technology apply in the malls safety protocol lockdown and Musujime teleported everyone but Tedashii and Akahana.

"A malicious man appear from the shadows of death from hell appear before Tedashii Hamasaki, a flash from the past, a man of science. A certain scientific dark experiment, a certain scientific Kihara."