Isamu Fuwa

Isamu Fuwa (不破 諫) is a captain of the AI intelligence agency A.I.M.S. who has a deep hatred for MetsubouJinrai.net, as they almost took his life as a child. As a member of AIMS, he fights as Kamen Rider Vulcan (仮面ライダーバルカン) to effectively combat the corrupt HumaGears.

Daybreak Accident
The Daybreak Town Accident occurred while Isamu was in class. Following the explosion (which destroyed Isamu's classroom), the boy was hunted by a swarm of rogue HumaGears. The incident caused Isamu to believe HumaGears were designed to kill humans, leading him to despise both HumaGears and Hiden Intelligence, who he believed covered up the incident.

Joining A.I.M.S.
Due to his hatred for HumaGears, Isamu joined the Artificial Intelligence Military Service (A.I.M.S.), eventually becoming the commanding officer. With his excellent fighting capabilities, he fought against A.I.-related violence, especially cases regarding HumaGears. Isamu's recklessness was kept in check only by his colleague Yua Yaiba.

Investigate the Daybreak Town Accident
"Just look forward... and keep going!"

- Isamu's determination to keep going. to be added

Horobi's Advance & Isamu Wounded
"You! It was you! So you were the one behind Daybreak!"

- Isamu discovers that Horobi was responsible for the Daybreak Town Accident. to be added

"Looks like I've got two memories now. A memory of HumaGears attacking me... and one of them saving me."

- Isamu accepts that not all HumaGears are bad.

Dangerous Evolution: Assault Wolf
"I don't need laughter! What I need... is my rage! Ever since Daybreak... I've survived to this day by rage alone! I will destroy MetsubouJinrai.net! That... is everything to me!"

- Isamu's resolve of anger to MetsubouJinrai.net, while forcefully opening the Assault Wolf Progrise Key. During a meeting analysis on MetsubouJinrai.net, Isamu suspected that there could be two more head members with the name related to Rai and Bou, like Horobi (Metsu) and Jin. Isamu and Yua later went to investigate Hiden Intelligence, suspecting there could be a MetsuboJinrai.net spy planted in the company to relay vital intelligence.

Isamu and Yua intercepted Artuo, Izu and Spacemen Raiden and Subaru at Hiden Intelligence's space program. Realizing Raiden's name is based from the Rai hiragana, Isamu accused the older model HumaGear to be the MetsuboJinrai.net spy, but he denies it and butts head with Isamu until Yua and Izu broke them up. As Jin arrives to take their Progrize Keys, Isamu joined Aruto and Yua, transforming into Kamen Riders Vulcan Shooting Wolf, Valkyrie Dashing Cheetah and Zero-One Shining Hopper before engaging Kamen Rider Jin and the Trilobite Magia. Vulcan and Valkyrie dealt with the Trilobite Magia, easily destroying them as Raiden managed to reject Jin's hacking, forcing the MetsuboJinrai Kamen Rider to flee as he commented on Raiden being a survivor of the Daybreak Incident.

Proceeding into the Space Development Center's observatory, Raiden and Subaru revealed Raiden's origin to Aruto and the A.I.M.S. officers. Isamu, however, still believes Raiden to be a spy and butted heads again until Yua and Izu stopped them, prompting Aruto to tell one of his gags. Fighting the urge to laugh and turning off the screen projector, Isamu proclaims he doesn't need laughter in his life and sticking to his gut that Raiden is the spy, forcing the HumaGear brothers to find the MetsuboJinrai.net lair.

After the brothers located the lair to a dam at Daybreak Town, Raiden lead Isamu and Aruto in the dam's interior, but were stopped by Jin, who was waiting for them and called Raiden "Ikazuchi". Isamu realized he was right until Jin further revealed that Ikazuchi was programmed to slip information to MetsuboJinrai.net with his knowledge and his failed hacking was a disguise to slip a program to lead both humans to the MetsuboJinrai.net lair as the older model HumaGear's programming began to falter. Isamu and Aruto watched as Jin placed a MetsuboJinrai ForceRiser on Raiden, overriding and restoring his previous programming as he transformed with the Dodo Zetsumetsurise Key into Kamen Rider Ikazuchi.

Angered, Isamu transformed into Vulcan Punching Kong and engaged Ikazuchi, but was outmatched even with Zero-One Biting Shark. As both riders coordinated their attack, Ikazuchi intercepted and electrocuted them, forcing them out of their forms and dropping the Punching Kong, Freezing Bear and Biting Shark Progrise Keys. Reverting to Shooting Wolf, Vulcan fires his ShotRiser as Zero-One, transformed into Flaming Tiger, shot jets of flames, but Ikazuchi countered with a Zetsumetsu Dystopia Rider slash with his Valk Sabers, cancelling both human riders' transformations and forcing them outside, which made them drop the Shooting Wolf, Flaming Tiger and Breaking Mammoth Progrise Keys.

As Ikazuchi used the riders' Progrise Keys, with the Sting Scorpion and Flying Falcon keys, to force Satellite Zea to restart the Ark, Isamu watched as Aruto transformed into Zero-One Shining Hopper and fight Ikazuchi until his body reached its limit, which Izu arrived with the Authorise Buster, which Zero-One used to fire the Progrise Dust Rider shooting and overwhelmed Ikazuchi, forcing him to drop the Progrise Keys.

After Izu recovered the human riders' keys and Jin takes back his and Horobi's keys, Isamu watched Horobi arrived and tossed a new Progrise Key with a built-in Assault Grip to Jin, but Zero-One fired another blast, forcing Jin to loose his grip on the new key and Aruto was forced out of his transformed state. Isamu takes the new Progrise Key, noting that it belongs to him as it has a wolf emblem, but Horobi explains it can only be used by MetsuboJinrai.net members. Ignoring both Horobi and Aruto, Isamu struggles to open the device as he states his anger is his reason for living and will use all his rage to destroy MetsuboJinrai.net as he opened the key and placed it in his ShotRiser, transforming into his new form: Kamen Rider Vulcan Assault Wolf.

Shocking the MetsubouJinrai.net members, Ikazuchi challenges the new Vulcan, only to become overpowered by Vulcan's new form. Despite his new power, Vulcan surmised Ikazuchi won't go down easily until Aruto handed Vulcan the Authorise Buster, forcing Ikazuchi back even more. Inserting his Punching Kong key, Vulcan fires a Punching Buster Dust Rider shot, which overpowered Ikazuchi's Zetsumetsu Utopia attack and destroyed him. Vulcan then proceeded to fight Horobi and Jin until his body reacted to the form's power, cancelling Isamu's form and making him cough up blood, forcing Aruto and Izu to drag him to safety. Far from MetsuboJinrai.net, Isamu pushes Aruto aside and proceeded back to MetsuboJinrai.net's lair, determine to finish the terrorist group once and for all.

Kamen Rider: Reiwa The First Generation
Due to the timeline changes caused by Time Jacker Finis, Isamu is seen fighting alongside the resistance fighters against HumaGears under the command of Will.

Super Hero Time
In the closing of Super Hero Time, Kamen Rider Vulcan is seen posing alongside Valkyrie, Zero-One, and the.

Kamen Rider Battle: Ganbarizing
Kamen Rider Vulcan, alongside Valkyrie, Zero-One, Horobi and Jin, will be playable characters in Kamen Rider Battle: Ganbarizing.

Kamen Rider City Wars
Kamen Rider Vulcan is a playable character alongside the other Kamen Riders.

Kamen Rider Buttobasoul
Kamen Rider Vulcan is a playable character with Valkyrie, Zero-One and other Riders in Kamen Rider Buttobasoul.

Personality
Gruff and serious in demeanor, Isamu is shaped by his burning hatred for HumaGears. Stemming from his trauma during the Daybreak Town Accident, Isamu believes that HumaGears are designed to kill humans, and is thus obsessed with destroying them. To this end, he will readily dismantle any rampaging HumaGear he finds, often ignoring the orders of his colleagues to do so. His recklessness and short temper are kept in check by his combat experience. He chooses to go by his own rules while engaging Magias, as shown when he forcefully opens his Progrise Keys without Yua's authorization since the latter refuses to give it.

Isamu is openly scornful towards Hiden Intelligence, whom he believes covers up attacks related to HumaGears. This hostility extends to its current CEO, Aruto Hiden. However, his view towards HumaGears eventually started to soften a bit after he learned the truth of the incident, thanks to Anna resisting the transformation into a Trilobite Magia to show the records of the Daybreak City Accident, and more after his life was saved by Dr. Omigoto. Ironically, while generally antagonistic towards Hiden Intelligence and its staff, he's actually fond of Aruto's lame jokes (being the only one who appreciates them) and tries his best not to laugh.

The more he learned about MetsubouJinrai.net the more he grow even more scornful towards it due to the Daybreak Town Accident, proclaiming that he doesn't need laughter, only anger. However after the destruction of the terrorist, he openly admitted to Yua that he felt awkwardly in peace and has no more hatred against them. He even said himself for being stupid to get angry only to the robot who only follow orders while looking at the immobilized Horobi.

Fighting Skill
Isamu is trained properly and became an expert in military combat arts. Despite becoming Vulcan which is designed to be a far ranged fighter, Isamu advanced the use for making Vulcan Shooting Wolf even capable to fight properly in close combat. Despite being a person to never make a plan to advance in the fight, Isamu always managed to outwit any opponent mostly as long as they didn't have a better state than him.

Skills

 * Marksmanship: It has been shown that Isamu is an expert in firearms, since he is capable of firing without failing his target either long or short distance.
 * Peak Human Strength: Isamu trained hard enough to have a powerful body enough to break Progrise Key's lock and even leading him to adapt Attache Shotgun's recoil after many attempt usage with Vulcan Shooting Wolf which had a weaker power trait than Vulcan Punching Kong.

Weaknesses

 * Assault Wolf (Formerly): Although this form surpasses the other forms of Vulcan in several ways, this form has an extremely detrimental effect on Fuwa's health, as was seen when its use made him cough up blood and barely be able to walk. But then it overcomes these inconveniences since Aruto's use of Shining Assault Hopper neutralizing the side effects.

Forms
Standard =

Super=

Special=

Devices

 * A.I.M.S. Shot Riser - Transformation device and main weapon
 * Progrise Keys - Transformation trinkets
 * Assault Grip - Used to access Assault Wolf

Weapons

 * Attache Shotgun - Vulcan's personal weapon
 * Attache Calibur - Borrowed from Zero-One
 * Authorise Buster - Assault Wolf's personal weapon
 * Assault Rifle - Standard armament of A.I.M.S. squad members; replaced by A.I.M.S. Shot Riser.

Suit-equipped weapons:
 * Knuckle Demolition: Punching Kong's gauntlets.

Allies:

 * Aruto Hiden/Kamen Rider Zero-One: Both Isamu and Aruto have the opposite view regarding HumaGears. While Aruto believes HumaGears are the dream of humanity, Isamu views HumaGears as nothing more than killing machines. Initially, Isamu didn't know about Aruto's alter-ego as Zero-One and called him Grasshopper Jerk (バッタ野郎), but the young CEO would eventually reveal his identity by transforming into Zero-One in front of his eyes, in order to prove his honesty. Despite their tense relationship, he's fond of Aruto's lame jokes and is the only one who appreciates them, though he tries to keep this to himself.
 * Yua Yaiba/Kamen Rider Valkyrie: Despite being assigned to the same team, Isamu and Yua actually don't get along and often argue, mostly due to Isamu's rebellious and insubordinate behavior, which causes her to deny him authorization to use the A.I.M.S. Shot Riser and any of his Progrise Keys. After Isamu learns of Yua's heavy affiliation with ZAIA, he begins to become more skeptical of her, but they still work well together when the situation demands.
 * Izu: At first Fuwa felt a certain hatred towards the HumaGears, because of the Daybreak Town Accident that had occurred that apparently extended to Izu, but little by little he overcame that hatred to the point that he considers her as an ally, such a point that She warned him about what Yua could be doing along with Zaia Enterprise.

Enemies:

 * Horobi: After knowing that Horobi is the main perpetrator behind the Daybreak Town Accident, evidenced by the latter's transformation into Kamen Rider Horobi, Isamu now holds great hatred against Horobi. His rage makes him lose his composure and attack him wildly. Although he was surprised along with Jin that he was able to use the Assault Wolf Progrise Key despite the fact that only the MetsuboJinrai.net members could use it. Fuwa finally able to take revenge after Horobi receives the rider kick means for Jin, thus decommissioning the rogue Humagear.
 * Jin: Although there was not much interaction between them, Isamu considers him as an enemy for being a member of MetsuboJinrai.net. After Jin was destroyed by Zero One Shining Assault Hopper, Fuwa is relieved.

Hiden Intelligence:

 * Jun Fukuzoe: TBD

Zaia Enterprise:

 * Gai Amatsu/Kamen Rider Thouser: Fuwa suspects Gai and his company of what he might be trying to do.

Portrayal
Isamu Fuwa is portrayed by Ryutaro Okada (岡田 龍太郎). As Kamen Rider Vulcan, his suit actor is Kosuke Asai (浅井 宏輔).

Etymology

 * Kamen Rider Vulcan's name comes from the M61 Vulcan, a gatling gun employed by the military. Vulcan is also the Roman name for the Greek god Hephaestus.