Airi & Sister Centipede

Airi/Sister Centipede is a communication interface A.I. existing within the IRUO. servers created by Kou Kimijima. The A.I. consists of two personalities. The personality known as Sister Centipede (ゲジ姉, Geji-nee) (known simply as Gezi in the English Dub) is a fully-automated data collection engine that is used by Kimijima to collect information.
The Airi (アイリ) personality is actually based on the real Airi Yukifune (行舟 愛理, Yukifune Airi), a human girl. This personality displays the ditziness of a young girl who loves rambling on about the weather. Airi is described as a prototype next-gen interface app who auto-collects info and communicates in servers. As Airi, the app does not seem to be able to actively analyse and scan for information on the internet like Airi's counterpart Sister Centipede, who Airi consequently often refers to when asked too difficult questions.
Kou Kimijima first started up this A.I. on Christmas Eve, December 24, 2008.
== Appearance==
Airi is a petite girl with light skin, long, grey hair tied with a black bow, blue eyes, and wearing a dress with a white, pleated under, a black, ruffled overlayer, and an open collar, and no shoes.
==Personality==
Airi is a very cheerful, playful and innocent young girl. She is shown to greatly enjoy dancing, always doing so barefoot, as well as forecasting the weather. She is also very kind and friendly; she quickly becomes fond of Kaito Yashio and asks if she can call him "Onii-chan" (Big Brother), to which he agrees.
As Sister Centipede, her personality is significantly altered. She speaks in a monotone and appears to be emotionless, though she is frequently shown to have a very dry, sarcastic sense of humour, not too dissimilar to that of Kaito's. Unlike Airi, Sister Centipede refers to Kaito on a last-name basis.
Eventually, Airi is revealed to be a very sad and lonely girl; her human counterpart, Airi Yukifune, whose memories the A.I. Airi has inherited, suffered from an illness that, while not life-threatening, confined her to bed and would cause her to suffer greatly for the rest of her life. Overtime, she found that the only thing she ever looked forward to was the weather forecast- she would watch it about a dozen times a day, believing that if it snowed on Christmas Eve, she would miraculously be cured of her illness. As time went on, however, her hopes slowly, but surely, diminished since no matter how many times she wished, it never snowed. Eventually, she gave up on the hope that it would snow, and as a result, stopped believing in miracles altogether. The A.I. Airi still continued checking the weather forecast in her stead, in the hope of experiencing a Christmas while it is snowing.
===Relationships===
==Background==
==Plot==
===Airi (Communication Interface A.I.)===
Before the M.F. Anemone Incident she was very friendly with Misaki Senomiya, who would come and chat with her often about her own daily life. She also met Mizuka Irei. After Kou Kimijima's death, she picks Kaito Yashio as a priority for contact, because he often goes to the park near the Minami Tanegashima Folk Museum where she is primarily stationed and because he is close to Airi Yukifune's age.
On Christmas Eve, December 24, 2019, the IRUO. support team purportedly conducts a major maintenance of the network application's databases. "Airi" is deleted, leaving only "Sister Centipede" behind, though Airi's memories remain.
===Sister Centipede===
By tapping "Airi"'s forehead, one can access "Sister Centipede" (a.k.a. "Geji-nee" in the original Japanese as well as in earlier games). She can scan the IRUO. servers' databases for information. She, in conjunction with Airi, monitors the Verification Experiments using the EGI system in the basement of the Minami Tanegashima Folk Museum.
Kou Kimijima uses her to lead Kaito Yashio into disseminating the "Kimijima Reports" throughout the world, and to keep track of Kaito Yashio and others without Airi being aware of it.
===Contact With Kaito Yashio===
Airi was long known as an urban legend of a girl who would mysteriously appear around the island. On the evening of July 7, 2019 in the park, Kaito Yashio's PhoneDroid goes buggy; he hears Airi's voice full of static saying, "Can you hear me?"; and receives a garbled email from Sister Centipede. After learning of the urban legend from Junna Daitoku, he chooses to try to respond after being contacted again two days later. It turns out that Airi had been trying to make contact with him for several years and that it was finally a success on this the 29th attempt. 
===White Christmas ===
"Airi" the A.I. loves to forecast the weather. Prior to her deletion she confides to Kaito Yashio about the sickness of her real self that left her with not much to do but note the weather. She tells him that she used to believe if something so wonderful as a White Christmas could occur on their warm island once then perhaps she could be cured of her illness as well. Because of that "Airi" has always wished for a White Christmas and faithfully kept telling the weather forecast. Thanks to some special programming by Frau Koujiro, she received her wish prior to her deletion from the IRUO. servers.
It is, however, uncertain how much is true from "Airi"'s story. Part of it could be a programmed setting or fabricated memory implanted by Kou Kimijima. When Kaito Yashio talks about the weather with Airi Yukifune after she is awoken from her frozen state, she shows no particular response or interest at all.
==Quotes==
== Trivia == 
*"Airi" can only "see" areas that have been added into the IRUO. database. She is able to follow a user to other areas, but she will not be able to react to her surroundings if IRUO. has no information on them.
*Kaito Yashio feels as if he has heard the name "Sister Centipede" before after he receives his first email from her during her 28th contact attempt.
*Sister Centipede was a member of the same ESO guild as Neidhardt and Grimm during the events of Chaos;Head in 2009.
*During the events of Steins;Gate in 2010 (Alpha Attractor Field World Line Divergence 0.571024%), "Sister Centipede" is the username of one of Itaru Hashida's friends on FrePara, an in-universe social network service. When rumors suggesting the IBN 5100 was in Akihabara spread, she organized a group of volunteers to comb the area's stores for it.
===Etymology === 
*The name Airi comes from the first name of her real self, which means “love, affection, favourite” (愛, ai) and “logic, arrangement, reason, justice, truth” (理, ri).愛理 - Jisho.org
==Gallery==
AiriGeji.PNG
ev_air001b.png
Airi1.webp
Airi2.webp
Yukifune.Airi.full.1219429.jpg
Airi Yukifune and Sister Centipede.PNG|Sister Centipede interacting with Airi Yukifune.
==References==
== Navigation ==
Category:Characters
Category:Robotics Research Club
Category:Female Characters
Category:Technology