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

Shadow Rensa

She can be hacked and deactivated with 667 firewalls being shut down however can rapidly boot up more unless Tedashii Hamasaki hacks her confirming he's the only one that kill end Shadow Rensa.

Shadow Rensa is considered an official non esper, as her abilities are not basic off Personal Realities or AIM Diffusion Fields, Just like the originals situation Shadow Rensa does not need "talent" to use the powers of its effectiveness is dependent on the one who "pilots" in case (Masato) however after Masato lost control of Shadow Rensa due to Data Mine, she gain her own artificial intelligence, she rid of that weakness for another as Zack Yoshikage points out that she now suffers the same difficulties that he has with Wild Card but unlike him she can actually use the abilities that she can't understand stating "She's like a four year old that god gave an important position in power like a board of dictator. With so much power, with no work experience what's soever the opposite version of me.
She may have the powers of an esper but she is not a esper not even a level "0""

Unlike Multi-Skill, Shadow Rensa is also unable use two powers at once, and even if a switching only requires 0.7 seconds it is always the same and an opponent can still take advantage of this delay, as with the case with original Rensa #028's fight with Kamijou Touma.

Shadow Rensa display unique Esper attacks, from even different To Aru fanfics, making her move sets, unpredictable.
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Personality

Shadow Rensa is someone that grew up WAY too early from considering Masato like a father but criticize him like a misguided teen. She is not to be confused with accelerator's personally as it was just a coincidence to looking down on her opponents calling them third-strings. She also has a toon anime character vide at times coming off as cartoonish similar to vol 2's bright style.

Similar to Rensa #29 in aggressive and vicious as well as her own repulsive nature, she is very hostile preferring to get straight to the point. She is very straight forward in roles, believing a hero should be all good and a villain should be all bad, even criticizing Masato Jun'ichi for being talked outta his plans by Tedashii and Zack. She likes to throw out ruthless and mocking jokes in savior of special moments such as joking that Tedashii and Joker had to team up just to fight a thirty minutes old self or when gaining control two minutes instead (if not counting before.) Her dark ruthless, childish twist nature goes far to becoming jealous and annoyed that the two boys are still trying to save Li Mei Xiaodan that she goes as far to annoy them trying every type of way to ruin the image Tedashii has for Li Mei talking in her voice stating things such as "I always hated you and if you never treated me bad before this wouldn't have happened!" and then laughs mocking him if it actually bothers him. She goes far to even disturb the Tedashii and Zack using Li Mei's voice asking they would be satisfied with sex from her. Despite what she says, she knows nothing of Li Mei and because of that she failed to even convince the boys otherwise.

Rensa has a perfection problem desiring in order such as wanting to kill Wild Card first and saving Code Vader for last as she sees Wild Card as her ultimate rival and Code Vader as her arch nemesis, she also love quotes in her way of looking down on humans that they are people that always got something native to say while they don't have the answers to the Global problems of the world as she question, "You got so much to say about saving someone but you got nothing for thousands that die at war if you're so heroic then where we're you then to save the world?"

Shadow Rensa loves to fight as she say it's best to give her a taste of all the possibilities she can come up with. She has a fighting manner that completely different from Rensa 28th and Rensa 29, using powerful attacks and quoting "So that's what that skill can do."

Relationships

Masato Jun'ichi
"TBC (will be Updated soon)"

Akahana Yoko
"TBC (will be Updated soon)"

Tedashii Hamasaki
As the Ultimate Life Form she considers Code Vader (Tedashii Hamasaki) her arch nemesis, the one that can truly end her. She has so much hate for him that she goes far and twisted in needs to hurt and disturb him, even going far

Zack Yoshikage
She Considers Wild Card's abilities similar to her owns and states him as her ultimate rival, the idea of her first opponent is him and Code Vader at an age of non less of an hour excites her.
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Chronology

(A Certain Scientific Code Vader)
"TBC (will be Updated soon)"
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Quotes

[To Masato jun'ichi' before taking control and revealing she Obtained Artificial Intelligence During his Fight With Code Vader & Joker (Code Vader Chapter 26]: "So useless how are you the bad guy if you feel bad? I can't believe I let you control me for this long."