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Icon-exaid.png This article is about a character in Kamen Rider Ex-Aid.


Kyotaro Hinata (日向 恭太郎, Hinata Kyōtarō) is the Deputy Director-General of the Ministry of Health (衛生省大臣官房審議官, Eisei-shō Daijin Kanbō Shingi-kan) working to fight the Bugsters. He is also a former doctor, the founder of the CR and the direct boss of Asuna Karino.



Kyotaro Hinata performing surgery on a young Emu Hojo

In the year 2000, Dr. Kyotaro Hinata was one of the surgeons who saved the life of eight-year-old Emu Hojo and inspired him to become a doctor. After Emu's recovery, he gifted him a WonderSwan handheld video game device by Dr. Hinata as a reward for hanging on. Sometime later, Hinata joined the Ministry of Health and became the Deputy Director-General. He became directly active during the events of Zero Day as the Ministry of Health collaborated with Genm Corp. to develop the Kamen Riders to combat the Bugster Virus.

Second Bugster Outbreak

Hinata reviewed Asuna Karino's choice of the genius gamer M as a candidate for becoming a Kamen Rider. While he pointed out that there was already a candidate on his way, he ordered her to reopen the CR. He gives Asuna a suitcase with a Gamer Driver and Mighty Action X Gashat.

Hinata infected by Proto Drago Knight Hunter Z Gashat's viruses.

Graphite, considering the CR a threat to his plans, pursued and infected Dr. Hinata in an effort to cripple the CR. Dr. Hinata was rushed to the CR and Emu, feeling he owed the man who saved his life, recklessly tried to save his life despite the good doctor advising him not to do anything rash. He was later visited by Kiriya who asked questions about his history with Emu as he was suspected of performing his compatible surgery. Eventually, his Game Illness was cured after Emu managed to tame the Hunter Gamer and defeat Graphite with the rest of the Doctor Riders.

After Kuroto revealed himself as Kamen Rider Genm and showed his alignment with the evil Bugsters led by Parado, abandoned Genm Corp which left it without a CEO. Hinata issued an order for Kuroto's arrest and is currently looking for a replacement CEO for Genm Corp.

Publicly Revealing The Bugster Virus

As a result of Graphite's pandemic and Kuroto's spree, Hinata realized that hiding the Bugster virus would only cause more panic. He held a press conference, revealing the existence of the Bugsters and assuring the press that the Kamen Riders would be effective in containing the virus.

Following Kuroto's takeover of Genm Corp., Hinata warned CR of the Ministry's punishment for their role in Kuroto's escape and the destruction of Emu's Driver. If Kuroto was not defeated in two days, Hiiro and Emu would lose their right to be Kamen Riders. After the death of Kuroto at the hands of Parado, Hinata congratulates CR for defeating Kuroto to justice, while assuring Emu, who is still mourning Kuroto's death, that his actions have saved countless lives.

Kamen Rider Chronicle

After Genm Corp. released Kamen Rider Chronicle to the public, many civilians had been infected with Game Illness and even perished in-game. To avoid causing a panic, Hinata prohibited CR from taking action due to their nature as "rare characters" and were ordered to remain on standby. After that, he attends a press conference to speak to media while the Doctor Riders disobey his orders to fight against the Bugsters. Realizing his errors, Hinata publicly spoke to the reporters to believe in the CR Doctors, the Kamen Riders.

Despite the Ministry of Health's warnings that Kamen Rider Chronicle is a hazardous game, the game received more customers due to Genm Corp.'s claims of the victor being able to bring back the Bugster Virus victims. What also didn't help matters is Masamune Dan resuming his role of Genm Corp. and taking over Rider Chronicle for himself. However, Emu and CR were able to continue moving forward with clearing the game and end Kamen Rider Chronicle for good.

The Gamedeus Pandemic

With Gamedeus and his Bugster Virus pandemic spreading rapidly, the Kamen Riders continue to contain the virus until they were able to find a way to defeat the Bugster. After Kiriya Kujo and Kuroto Dan created the Doctor Mighty XX Gashat as a vaccine against Gamedeus' virus, he congratulated Kiriya for his efforts and permitted him to work as a CR doctor. As for Kuroto Dan, he authorized CR to handle him in their custody until the Ministry of Health permits him to leave.

After Kamen Rider Cronus' demise and the end of the Kamen Rider Chronicle, Hinata privately congratulates Emu at the Seito University Hospital rooftop and remarks how he changed for over sixteen years ago. He leads a press conference with Emu as the latter announced his intentions to help free the Game Illness victims from the Proto-Gashats and named those who passed away from the Bugster Virus.


Kyotaro is a kind and intelligent man, who is respected for his talent as much as his position. His experience as a surgeon helps him maintain his composure in stressful environments, and his wisdom has provided guidance for Emu on more than one occasion.

Kyotaro is determined to avoid a second Zero Day: He originally covered up the existence of the Bugster in order to avoid a mass panic.

Bugster Union

Kyotaro's Hunter Gamer-like Bugster Union

The Bugster Union (バグスターユニオン, Bagusutā Yunion) is the monster form of a Bugster-infected patient when the virus first flares up. When a Bugster-infected patient experiences enough stress, the Bugster Viruses inside multiply rapidly and overtake the patient's body, forming a giant orange virus form around it; the Union's shape seems largely irrelevant to the Bugster's appearance. Bugster Unions can only be defeated by a Kamen Rider in Level 1; the reason why is unexplained, though it may be because other Levels are too strong and may injure the patient inside the Union.

Behind the Scenes


  • Kyotaro Hinata is portrayed by Hironobu Nomura (野村 宏伸 , Nomura Hironobu).




Icon-exaid.png Kamen Rider Ex-Aid
Kamen Riders
Emu Hojo - Hiiro Kagami (Game World) - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Asuna Karino/Poppy Pipopapo - Masamune Dan - Ride-Players (Nico Saiba - Haima Kagami) - Genm (Bakusou Treasure) - Kagenari Nagumo - Ninja-Player - Black Parado
Game Scope - Gamer Driver - Kimewaza Slot Holder - Rider Gashat - Energy Items - Buggle Driver (II) - Bugster Buckle - Gashat Gear Dual (β - Another) - Rider Gauges - Rider Gashat Case - Energy Item Holder
Gashacon Weapons
Gashacon Breaker - Gashacon Sword - Gashacon Magnum - Gashacon Sparrow - Gashacon Bugvisor (II - G) - Gashacon Key Slasher - Gashacon Parabragun
Other Weapons
Flamber Saber - Ride Weapon - Fuma Sōzantō - Genin Weapon
Robot Gamer - Beat Gamer - Combat Gamer - Chambara Gamer - Sports Gamer - Hunter Gamer - Bike Gamer - Burger Gamer - Fantasy Gamer - Simulation Gamer - Maximum Gamer - Safari Gamer - Tank Gamer - Legacy Gamer - Pac Gamer - Famista Gamer - Xevious Gamer - Galaxian Gamer
Asuna Karino - Haima Kagami - Kyotaro Hinata - Ginko Yumita - Nico Saiba - Satsuki Ogimachi - Mizuki Nishikikoji - Tsukuru Koboshi
Others: Saki Momose - Sakurako Dan - Eight Kirino - Saiko Yaotome
Locations: Seito University Hospital - CR - Ministry of Health - Hanaya Game Illness Clinic - Genm Corp. - Game World - Machina Vision - Next Genome Institute
Generals: Parado - Graphite - Ren Amagasaki - Gamedeus
Movie-exclusive: Michihiko Zaizen - Pac-Man Virus - Hatena Bugster - Soji Kuruse - Kazushige Ryuzaki - Ageha Takeda - Johnny Makishima - Nebula Bugster
Stageshow-exlusive: Futago Bugster
Regular Bugsters: Bugster Virus - Bugster Union - Salty Bugster - Aranbura Bugster - Revol Bugster - Motors Bugster - Collabos Bugsters (Gekitotsu - DoReMiFa - Giri Giri - Jet - Kamen Rider Genm series) - Burgermon Bugster - Gatton Bugster - Vernier Bugster - Kaiden Bugster - Charlie Bugster
Regular Games: Mighty Action X - Taddle Quest - Bang Bang Shooting - Bakusou Bike - Gekitotsu Robots - DoReMiFa Beat - Giri Giri Chambara - Jet Combat - Shakariki Sports - Drago Knight Hunter Z - Dangerous Zombie - Mighty Brothers XX - Perfect Puzzle - Knock Out Fighter - Perfect Knock Out - Ju Ju Burger - Night of Safari - Bang Bang Tank - Taddle Fantasy - Bang Bang Simulations - Taddle Legacy - Maximum Mighty X - Kamen Rider Chronicle - Toki Meki Crisis - Hyper Muteki - Doctor Mighty XX - Mighty Creator VRX - Hurricane Ninja - God Maximum Mighty X - Knock Out Fighter 2 - Zombie Chronicle - Mighty Novel X - Genm Musou
Legend Rider Games: Let's Go Ichi Gou! - Adventure Guy Kuuga - Agito of the Sun - Mirror Labyrinth Ryuki - Moshi Moshi Faiz - King of Poker Blade - Taiko Master Hibiki - Insect Wars Kabuto - Time Express Den-O - DokiDoki Makai Castle Kiva - Barcode Warrior Decade - Detective Double - Jungle OOO - Space Galaxy Fourze - Magic The Wizard - Toukenden Gaim - Full Throttle Drive - Kaigan Ghost - Kamen Rider Build - Ganbarizing
Legend Games: Pac Adventure - Famista - Xevious - Taiko no Tatsujin - Galaxian
Other Games: Hatesate Puzzle - Buddhist Priest of Temple - Chou Super Hero Taisen - Chou Shocker Taisen - Bakusou Treasure - WayoseTUNE - Nazo Toki Labyrinth