Wolf Orphnoch

The Wolf Orphnoch (voiced by Kento Handa) is actually Takumi Inui who's a young, lonely drifter with a mysterious past who aimlessly wanders across Japan until he is recruited by Mari Sonoda and Smart Brain to fight the Orphnochs as Kamen Rider Faiz (仮面ライダーファイズ Kamen Raidā Faizu, Masked Rider Faiz), as the primary user of the Faiz (Φ) gear.

Takumi was originally a human until he died in a fire accident, resurrecting him as the Wolf Orphnoch and decided to use his new-found power to protect humans, trying to save Ryusei School students when their reunion turned into a massacre caused by the Clover Four's Kitazaki and some of their classmates who were already Orphnochs. Since the brutality of the incident, and somehow confused between his failure to save them and the implanted memory in him afterwards that made him believe that he was really the one who started it, Takumi refused to transform again and became a loner, bent on not getting into relationships with people out of fear of somehow betraying them, traveling without any self-confidence or lifelong dream of his own. He is also often teased by Mari for being a "nekojita" (literally means "cat tongue"; someone who cannot stand food that is too hot) which was because of the fire accident he had.

While at a restaurant, Takumi sees Mari there and follows the girl under the notion that the bag she carried was the one stolen from him three days prior, demanding the bag from her when two of her traveling companions dissolved and she assumed he killed them. But when the true killer, the Orphnoch Hiroshi Izawa, reveals himself to take the Faiz Gear, Mari put the Gear on a reluctant Takumi, becoming Kamen Rider Faiz and kills the Stingfish Orphnoch.

Once the police find his bag, Takumi ends with the Faiz Gear when he and Mari got their bags mixed, coming to her aid when she is attacked by the Elephant Orphnoch before Mari guilt-trips him into sticking with her. But once learning she was faking her injuries, Takumi ditches her and causes a laundry van to crash, with Mari forced to help its driver Keitaro Kikuchi make his deliveries before finding Takumi at a laundromat.

However, when the Orphnoch bounty hunter Aoki appears, Takumi uses the Gear to kill the Ox Orphnoch with Keitaro witnessing the fight, later stealing the Faiz Gear with the intent on using it to save people. When Keitaro was confronted by two Orphnochs, he used the belt, however, he learned that he could not transform. This resulted with Orphnoch bounty hunter Akai taking the Faiz Gear and using it to his own ends until the Auto Vajin cancels the Faiz Gear's transformation. With Takumi reclaiming it, he fought and defeated the Cactus Orphnoch, deciding to keep the Faiz Gear and the Auto Vajin, though very apathetic towards his "duties" as Faiz when there is no immediate threat.

Arriving at Tokyo, after Mari gets no reply from her father, Takumi suggests they head to Smart Brain to find him, only to not meet Mari's guardian. But after getting a traffic fine and an ensuing argument, Mari decides to borrow money from Keitaro to pay Takumi's fine on the condition to her pay back by working part time at Keitaro's shop. Later, when the Orphnoch Eiiji Toda chases after him and Mari once killing the master at the coffee shop he worked at, Takumi admits his flaws before Keitaro arrives in time with the Faiz Gear and Takumi uses to kill the Squid Orphnoch. Deciding to help Mari, Takumi attempts to steal a Smart Brain pass from Yuji Kiba, who refuses to press charges. Later, Takumi encounters the Snake Orphnoch (Naoya Kaido) and attempts to fight him until the Horse Orphnoch (Yuji Kiba) charged in to aid him.

Eventually, Takumi was getting used to being Faiz and decided that if fighting was a sin, after losing to Kaixa a few times and battling a few Orphnoch, then he would bear the sin and defeat all that get in his way. But, after his fight with Lucky Clover member Mr. J, he loses the Faiz Gear to the Centipede Orphnoch, Itsuro Takuma. But he gets it back and is able to transform into Axel Form, thanks to Kusaka, where he manages to defeat the Sea Cucumber Orphnoch and drive Takuma away. But an act of deceit from Kaido and the Rabbit Orphnoch, Yoshio Kobayashi, Takumi and Kusaka lose the belts to them as they are attacked by Takuma and a fellow Lucky Clover member, Saeko Kageyama. Takumi then did an undercover mission to get back the gears for him and Kusaka. After his cover was blown, he and Kusaka discovered the Ryusei School inside the Smart Brain Corporation along with the Delta Gear. After getting back the Faiz Gear, Takumi transforms into Faiz to battle the Lucky Clover members who have escaped.

Takumi then learns that the rest of the students of Ryusei School also used the Delta Gear to fight. He tries to help Kaixa take out the Frog Orphnoch, but finds that it was defeated by Kamen Rider Delta. Takumi then learns that the Delta Gear was stolen by Sawada, a Ryusei student who became an Orphnoch. The male Ryusei School members freak out over who the belt should belong to, with Takumi puzzled by their strange behavior. Eventually, he learns that Mari was captured by the male students who wanted to trade her life for the Delta Gear. However, Sawada arrives and kills the two students, revealing he came to discard the last shred of his humanity by killing Mari, however Faiz and Kaixa interfere with this plan, also finding out his identity but let him escape.