Background

Amanohara City and Oozora Family

Amanohara City, a place famous for having outer space theme and using wind as the main source of energy for the city. Apart from that, this city had great reputation in caring for nature.

In one of the bungalows in the residential area located there, it was occupied by a family of three, consisted of a mother with her son and daughter. The name of the mother, son and daughter are Haruka, Hiro and Ayumu respectively, with Oozora as their surname.

Haruka works as a scientist at Tiny Orbit co. Her son Hiro, who is 22 years old and runs an inherited private detective company, named Asaka Detective Agency. This agency was located at a small old building that is located at the suburb of Amanohara City.

Ayumu is 15 years old and she went to Tenku Middle school. She is different than Haruka and Hiro because they are not blood-related. In fact, she loses her mother since little and her father was no more after getting caught in an incident. The girl was adopted by the Oozora family after her father's death because they had no other relatives to look after her. Regardless of her origin, Haruka and Hiro cared about her as much as she was a part of their family.

Asaka Detective Agency

It has a rather retro-style office and a hidden secret lab, which Hiro uses for certain purposes. The office is located on the first floor and the building also had a billiard shop on the ground floor.

The lab has a metal platform with diamond-shaped pores that covers almost the whole room. On left and right of the lab, there are whiteboards with markers.

In the middle of the room, lies the garage-truck vehicle, RevolGarry, where the motorcycle, Hard-Boilder along with three different component parts for extra booster and changing into Hard-Splasher and Hard-Tubular.

All component parts are stored on the RevolGarry's Rotating Wheel. Most of the time, RevolGarry is in dormant state and only activate when Hiro enters the activation code on his Stag Phone.

Apart from that, there is a couch for people to relax at along with a chair and a desk on the left side (Right side from RevolGarry's position to deploy). The desk had a desktop computer, printer along with other stationaries, which Hiro used for his detective work.

Summary

Oozora Hiro, he was what people call an anime, game and Tokusatsu Otaku, who is obsessed with materials related to those genres. He was just a normal person enjoying his life until an unexpected organisation called Bliss captured him four years ago, on 2056.

The bluenette was brainwashed by that organisation into attacking people and disturbed the peace of Japan and the whole world. The chaos continued for a year but luckily, thanks to Yamano Ban along with his allies, they were able to thwart that organisation's ambition and brought Hiro back to his senses.

However, Hiro suffered from an amnesia due to that incident. Not only that, society feared him as a criminal and he was shunned. Even worse, majority of them threw stones and garbage at him and a few try to assault him out of vengeance for his crimes onto them.

This issue reached up to the authorities and Hiro was put onto court. Majority of the board members demanded Hiro to be on prison and the more aggressive members want him to be executed with death sentence due to their stereotypes of the bluenette was plotting something new under Bliss guidance.

After some arguments, one of the members proposed a solution with justifications. Most of the members agreed to that solution and the court come up with a decision.

Hiro will be transferred to Amanohara City and put on probation under a different guardian. He was prohibited from seeing his friends and family until the probation was over and the authorities no longer see him as a threat.

Apart from that, it is compulsory for him to record his daily activities and get them reviewed and approved by his guardian throughout the probation period.

If Hiro fails to abide with this responsibility or his guardian did not approve his recorded activities, he shall be sent to prison for 5 years without second thought. It goes without saying that the same punishment shall be implemented if he was suspected getting involved in illegal activities.

At first, most of his friends rejected the decision but the adults had to make them accept it because the original intended punishment was even crueller then the final decision.

He was sent to Amanohara City on 10th March 2058 and unexpectedly got caught in a crime case. He nearly died but was saved by Asaka Fuuto, who was a hard-boiled private detective and whom Hiro later realised that person was Ayumu's father. Coincidentally, Fuuto was also the guardian assigned by the court to oversee his probation.

Throughout the probation period, a lot of things happened. During the early stage, Fuuto had Hiro do his office work while the former went solving cases. As time passes, his guardian then allowed the bluenette to help him in solving crime cases.

There are a lot of ups and downs that the bluenette faced but everything went smoothly till the end. Seeing as Hiro behaved well and abide the given responsibilities, the court lifted his probation and allowed the bluenette to return to his hometown.

However, Hiro made his decision to stay at Amanohara City and wanted to be Fuuto's apprentice. It took him a bit of effort, but he managed to get his boss's approval in accepting him as an apprentice. Coincidentally, Haruka was planning on buying a new house at Amanohara Town, which also doubles the excitement for the bluenette as she agreed with her son's decision as well.

However, before Hiro gets to embark on this new journey, an incident occurred on 20th April 2059. Both him and Fuuto got caught in a conspiracy instigated by an organisation called Geo, whose goal is to spread dangerous devices call Gaia Memories throughout Amanohara City and wreak havoc. This incident leads to Fuuto's death while Hiro barely escaped and survived, carrying on Fuuto's wishes.

Fuuto's wishes stated for Hiro are as the following:

1. Watch over his daughter, Ayumu until she got married to a man that is worthy of her.

2. Protect Amanohara City from the villains who wanted to make it cry. (In this context, he means to stop villains who commit crimes and in turn causes the citizens to suffer from those villainous acts. This also includes the Geo organisation).

After that incident, the Oozora family adopted Ayumu, Fuuto's sole daughter since she had no other family relative to look after her. In addition, after performing the procedures as stated by law, Hiro runs the Asaka Detective Agency in place of his boss and solved various cases. However, most of the cases he handled had Gaia Memories and Dopants involved.

Hiro, using the Lost Driver and three special Gaia Memories; Cyclone, Heat and Luna battles the Dopants as Kamen Rider to stop them from wreaking havoc in the city and made it cry. Not only that, Hiro had awakened another power, which allows him to access the knowledge of Earth through the Planetary Bookshelves (the official name was Gaia Library, but I prefer using Direct Translation from TV-Nihon).

Initially, Hiro did this operation in secret to hide his identity from the society as well as the organisation that was targeting him. Eventually in six months' time, Haruka and Ayumu learned what he was doing and try to help him with what they can do. He appreciates their help and allowed them to assist him when needed.

In addition, he explains about what he uses to become Kamen Rider for both but did not explain about the origin of it only to Ayumu. This is probably because he still could not face her and ready to tell the truth. He was not going to hide the fact forever, but he still needs time before he can properly tell everything. Until that time comes, he needs to protect his family no matter what.

Gaia Memories

USB like devices that allow users to become monsters that are referred as Dopant. The origin of these power came Earth's Knowledge, which give the Gaia Memories to its fullest potential. The name and the letters displayed on the Gaia Memories decide the Dopant's form and its ability. Example, Magma Memory turns the user into Magma Dopant that is specialised in flames and can melt metals. Most of the Gaia Memories had ribcage on their outer appearance.

Humans who become Dopants are greatly affected by negative emotions and suffered side effects from the repeated usage, which not only affect their personalities but may also damage their bodies, leading to their deaths.

Hiro's Gaia Memories are different compare to the normal ones. Apart from the outer appearance design to look like normal USB devices, they were refined that severely weaken any side effects from using the memories and programmed to only function with a specialized Memory Driver belts.

The belt that Hiro uses was Lost Driver, which allows him to become Kamen Rider Cyclone, Kamen Rider Heat or Kamen Rider Luna. To defeat Dopants, Hiro needs to use a finisher that can only be done by activating Maximum Drive, which temporarily increases Kamen Rider's attack to maximum and will damage the Gaia Memories inside Dopants, forcing the devices to be ejected from the bodies and shattered.

Hiro had seven memories in total. Cyclone, Heat, Luna, Fang, Joker, Metal, and Trigger. He did not use the others during his cases apart from the first three because Fang was too aggressive to use even with the driver (which made him lose control) while he had low compatibility with Joker, Metal and Trigger.

Dopants

Monsters that are created from humans using Gaia Memories. For a human to use Gaia Memory, he/she needs to undergo special surgery on one part of their body (example palm, forehead and etc) to get the Living Connector, a port to insert Gaia Memory. The port shall only appear when the Gaia Memory was activated by pressing the button on it. Hence, it is not possible to know the culprit among the public that uses Gaia Memories without the memory being activated.

Not just any human can use any Gaia Memory, as it had compatibility. The memory compatibility with the user decide if he/she can bring out the full potential of the said memory. Meaning, if the said memory and user are incompatible, it will not allow them to use full power. The only way to stop Dopants is to do Memory Break on them. Dopants who got hit by Maximum Drive will have their memories shattered and the Living Connector damaged.

Planetary Bookshelves/Gaia Library

A new power that Hiro gains from the incident on 20th April 2059. Using this ability, he was able to make his mind enter a boundless subspace that is filled with books properly arranged on shelves. All these books contained the knowledge that Earth has recorded, that also includes Dopants and Gaia Memories.

The main advantage of this ability is that Hiro can simply learn almost everything in this world regardless if that information is in fact private and confidential. However, Hiro refuses to use his power for personal goal. He wants to use this power to track down criminals and learn the history of the people involved within his cases. By almost everything, he can also learn the truth that everyone does not aware about. For example, if a murder/kidnapping case had no witnesses or proof, how can he solve the case? Ask the Earth about what happened at this place on what date and what time. After all, Earth is the best and honest eyewitness if the human eyewitnesses are falsifying the truth.

However, great power comes with limitations and weaknesses, which is listed as below:

1. Too many to read

Despite gaining access to almost every knowledge, Hiro was still a human, meaning he is unable to process information as quick as computers.

In solving crime cases, first, he needs to ask a question that he wants to know the answer. Then start filtering the books by inputting a few keywords/phrases/codes, which the Earth will give him the truth to the question that he asks.

2. Complete Obsession Mode

Because of the incident, he does not seem to remember most of the common knowledge that normal people have and what hobbies he was interested before. Take this question for example:

"Why Anime is so popular in Japan?"

If this sentence makes him intrigued to the point of obsession, he will start do lookup with just this sentence and reads every book about it for non-stop. No one could interrupt him, and he won't stop learning and reading until he finishes every single book that the Earth show him to the last page.

It only happens occasionally, and Hiro would only enter this mode if people urges and influences him into learning what they know but what he does not.

Regardless, getting into this mode causes great trouble. First, he will become very exhausted and collapsed once he done reading. This is because he will be forced to become awake when reading the books, even if his body was already tired and needs rest or when he needs to eat or drink.

Second, he would not be able to tell between safe and danger of his actions to the surroundings before he learns about it. If the knowledge that he was obsessed on learning requires him to do something to understand, he will do it without any concerns to his surroundings. For example, if learning about flames make him obsessed, he may end up burning the whole city and had to be prisoned for arsons. Even worse, getting himself killed.

Being aware that this weakness is truly a great threat, he tried his best not to get too interested in topics that is not related to crimes. This is so that he does not get side-tracked and get a hold of himself on high-stakes situations.