A beautiful woman skilled in combat and many weapons. She works as a salvager and sometimes takes on missions such as espionage.
When Aika was young she was used as a test subject by her parents to use a power suit called the bustier. The suit allowed her to have a second protective skin, and gives her immense strength. Some time later the catastrophic earthquake that caused half of the world to become flooded happened and her parents and all the researches died. She was the only one who survived the earthquake due to the bustier protecting her. It is unknown how long Aika was alone but she was rescued by a Salvager named Gozo Aida. Gozo takes it upon himself to bring up Aika and raise her as his own.
Aika age 16
At the age of sixteen Aika is now in high school. She is very athletic and has a sharp mind, and has passed the Salvager test and earned a C-class Salvager license. Despite being sixteen years old now, she is still being treated as a child by Gozo. With her license, Aika put up posters offering her Salvager services to get some customers. At that time her classmate and president of the Treasure Hunting Club, Eri Shinkai, posted a request for her. Aika gladly undertook Eri's request and boarded Eri's private cruiser to learn of her mission. Onboard the cruiser she learned of her job and is ordered to salvage something from beneath the sea and she gladly accepts.
Three years later Aika is now 19 and continues being a salvager. One day while flying her jet over a academy she is attacked by a strange being that is abducting some girls from the academy. Instead of running away she is interested and explores whats going on. She mets up again with her friends Eri Shinkai and Karen Minamino who are also exploring the academy. She then learns girls at the academy are being abducted. Most of the girls are cute and beautiful are joining an internal club, but instead of a sing-in they just get abducted by a strange being that takes control over them by some indecent means.
Aika age 26
Seven years later Aika is twenty six and works for Gozo Aida and is teamed up with his daughter Rion. Gozo business isn't that successful and is in need of money so Aika takes on any job with a high price, and has a constant rivalry with a man named Gust Turbulence. One mission she and Gozo are on she uses her bustier and almost gets Gozo killed because of its use. After that day she refuses to rely on it and only brings it on dangerous missions. One day she signs up for a very dangerous job despite Gozo's worry. She is to acquire an artifact called Lagu which is a new energy source. Her employer wants her to confirm it's existence and obtain any research data. Soon after the meeting she is attacked by a group called the Delmo Corps. After taking care of the corps members one their bosses Neena Hagen reveals herself, and tells them to not get involved in this mission and leaves with her underlings. The next day Aika prepares to leave for her mission and brings the bustier with her just in case things get too dangerous. She soon discovers Rion snuck aboard her jet to assist despite Aika not wanting her too for dangerous reasons. While flying the Delmo Coprs discover her, and Gust jets flying above their ship and start attacking them. Soon Neena becomes impatient and decides to attack in her jet. After Neena takes down Gust jet she then sets her sights towards Aika is unable to escape due to Neenas jet being faster than the ancient one she is driving. Soon after a mysterious radiation coming from the Lagu causes both jets to lose control and Rion knocks herself out. Hearing Aika panic her bustier awakens and starts to merge with without her asking. The bustier then sends four of its tendrils to the back of the jet to start the engine for Aika. They are able to land on the closest island but are soon found by the Delmo corps ship. As they surround her the Bustier loses energy and reverts back to it's normal appearance leaving Aika defenseless. She then meets the Delmos other boss Rudolf Hagen who is holding his unconscious sister Neena takes an interest in Aika. Soon Neena awakens and attacks Aika but is attacked by her. As she falls to the ground Rudolf comes and gives Aika his coat and invites her on his ship which makes Neena very jealous. Aika is then given a white Delmo uniform by Rudolf who explains what the Lagu is and that is caused the catastrophic earthquake. He also explains it ability to reshape the planet. Aika asks why is he telling her all of this. Rudolf then says no reason at all and then asks her if she will join him. Aika is silent and he sends her to her cell and tells her to think about it. Aika then decides to take up his offer and asks the guard to take her to meet Rudolf. As she arrives she asks if she can trust him. To which he does not reply. Soon Rudolf goes to release her hand cuffs and asks her about the Bustier saying he heard of it but never seen it. To which she tries to grab but stops her by kissing her. Rudolf then tells Aika he will give her the data on Lagu only if she joins in bed to which she does. Soon Gust comes bursting into the room and discovers Aika in bed with Rudolf to which makes him furious calling Rudolf a pervert. Aika then takes the opportunity to grab the data and her bustier to escape. Rudolf then asks do you want the data you sold your body for. But Aika shows she already grabbed it and leaves making him furious. Soon after escaping to the deck of Rudolf ship Aika and Gust are cornered and about to be fired on by the Delmos until a drunk Neena appears. Neena then pulls out a knife and states what she is going to do to Aika face. Gust then tries to block her attack but Aika gets stabbed trying to protect him. Hearing Aika scream in pain the Bustier awakes attacks Neena. The Bustier then merges with Aika and takes control of her body. She then starts attacking every Delmo in sight. She then grabs one by the head and lifts her up. Then Rudolf who was watching from the side fires a laser at her causing it to fall off of Aika and turn black. Gust then grabs AIka and tries to think of a way to escape but is cornered the Delmos. Soon after Bandora arrives in Aikas jet and saves them. Few hours later Aika awakes and discovers she on an abandoned gas station with Gust and Bandora who are fixing the jet. She then asks where but discovers she is on Rudolf ship still which makes her panic and try to go and rescue her but she is too weak from her injuries. Gust then promises her they will go after them and save Rion. Soon after Aika recovers and they fly after Rudolf ship. They discover Rudolfs ship after it has destroyed some naval ships and discover it going on land and preparing to launch into space. Aika and Gust hurry off the jet to reach the shuttle but are having trying to reach the opening due to the force of the speed of the ship. Soon Gust isn't able to hold on goes flying backwards and Aika manages to enter the ship. Once Aika discovers where she is someone attacks from behind with a red tentacle choking her. She soon discovers it it Nena who has her own Ultranate that Rudolf made for her after studying Aika's. Neena starts to strangle Aika with her tendrils and manages to break her left arm. Neena then brings her closer and punches her into the face for pay back from earlier. Neena then comes closer too her and craps her by the neck lifts her into the air. Aika then pretends to pass out and grabs a gun from her back and shoots flares into Neenas face to escape.
Aika and Neena fighting with their Ultranates
Aika is then reunited with Rion after accidentally knocking her out. Aika then wakes Rion up and apologizes for taking too long in rescuing her to which Rion cries in happiness. Rion then tells Aika what Rudolf plans to use the Lagu for. Aika then decides to escape so they take one of the Delmos hostage forcing her to show them were the escape pods are. Once they arrive they find Neena blocking the way. She then merges with her Ultranate and attacks Aika and the surrounding Delmos. Neena then grabs Rion with her Tentacles and holds her in the air while she tortures Aika. Neena then holds Aika with her foot and turns her arm into a blade and slowly starts cutting through the wall down to Aikas head. Soon AIkas Ultranate senses her in danger and breaks out of its test tube to save by ramming into Neena sending her flying. It then heals Aika wounds and merges with her. Rion then sees Aika to which she apologizes for not telling her of the Ultranate. But Rion says it looks so cool and asks her how she transforms and that it's like something from an anime. Neena then gets aggravated from being ignored and attacks them but Aika breaks her blade into pieces. Aika then starts attacking Neena who can not keep with her. Aika and Rion hurry to the escape pod but Neena stops them by grabbing on to Aika saying she won't escape as she turns both of her arms into blades. Soon Rudolf hears of the commotion going on in the ship and discovers Aika has retrieved her Ultranate and starts heading down there to help Neena. As they continus to fihgt Aika is able to break any part of Neena to which becomes confused say her was built to be stronger than hers. As she cannot accept it she sends many tendrils to Aika who creates a shield to save her and Rion. Neena then starts to focus all of her energy to drill through Aikas shield by doens't notice the strain she is doing to her body. She then falls to her knees grabing her head in pain as her veins start to bulge out of her skin. Her ultrante then starts to fuse to her body causing her to become distorted and grotesque. The ultrante then tells Aika her body cannot take it any longer. Aika then asks if they can save her but the Ultranate tells her it is too late and they decide to leave. But Rudolf appears and shoots the same laser at Aika again causing her to lose control. He then tells her the story of the Ultranate and asks if she was the original human that was test to use it. He then tries to shoot her again but the Ultranate attacks him and is about until Aika stops it from doing so. Rudolf then tries to grab but Neena grabs him. Becoming insane Neena refuses to let him go and starts absorbing him into her body. She then launches herself out of the ship into space as she is finally happy to be alone with her brother not realizing he is dead. Aika and Rion hurry to get away from the vacuum of the hole. RIon then becomes unconscious again with Aika grabbing hold of her hand. She is then rescued by Gozo and Gust who came aboard to save them and destroy the ship with help from Maypia. As they fly back to earth they watch Rudolfs ship explode.
Abilities and Skills
Aika has been trained in hand to hand combat, and knows how to pilot vehicles such as ancient submarines and jets. She also has a unique item called the bustier which is made of a material called ultranate. The ultrante takes the form of a gold busiter which Aika wears. It basically is a second skin which merges with Aika turning her skin dark and giving her blue hair. It then takes the form a of silver two piece bikini. The bustier then gives Aika super strength, speed, and the ability to create tendrils to use for long range attack or merging with machines. The bustier is basically alive and has A.I. as it is able to talk to Aika when merged with her, it also will do anything to protect despite not wanting it. In this form she is called Shivie Aika.