Jin Takayama maybe but at least he loved his family

Prepare for Lore Drop

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"In order to protect humanity...I had to abandon mine."

Jin Takayama (鷹山 仁, Takayama Jin) is one of the two main protagonists of Kamen Rider Amazons. He was a former researcher from the Nozama Pharmacy who transformed into Kamen Rider Amazon Alpha (仮面ライダーアマゾンアルファ, Kamen Raidā Amazon Arufa).

Jin was originally a researcher for the Nozama Pharmacy, and presumed to have an important hand in the creation of the Amazon Cells. After the lab accident which caused 4000 Amazons to escape, Jin vowed to personally wipe each and every remaining Amazons off the face of the Earth. In order to do that, he injected Amazon Cells into his own body to become stronger, becoming Amazon Alpha. It is presumed he was also involved in the creation of the Amazons Driver, with Nozama Pharmacy kept unaware of the driver's existence. Prior to the series, he planted a GPS tracker on Nozama Peston Service truck, using their movement to track the other Amazons.

Following the Nozama Peston Service, Jin makes his appearance in the driver's seat of their truck as they struggle to deal with multiple Amazons. Disembarking, Jin identifies himself as an Amazon before transforming. Proceeding to pick the Spider Amazon as his first target, Jin attacks and swiftly kills the monster by ripping its heart out.

After finding out there was another Amazon named Haruka Mizusawa who was similar to him, Jin brought Haruka back to his place, offering Haruka to stay for the night. Jin then attaches an Amazons Register onto Haruka's arm and tells Haruka about the Amazons

Jin continued to hunt down the remaining Amazons, just as the Nozama Peston Service was doing the same. Following the Service to hunt Dragonfly Amazon, he fought the Amazon briefly, but for unknown reason disengaged and watched silently as it ate Jun Maehara and defeated Mole Amazon, until Haruka Mizusawa arrived and defeated it as Amazon Omega.

Asking whether Haruka agreed to join him in his quest, Jin got the cold shoulder, being attacked instead and later withdrew silently

Season 2:

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Five years after the Tlaloc incident, Jin's sanity deteriorated as his maniacal obsession to eliminate any and all Amazons he came across intensified. This pattern of behavior eventually drew the attention of Haruka, now the protector of benign Amazons and humans alike. The two would battle on numerous occasions, but because of Jin's ever-increasing insanity, Haruka always emerged triumphant. And perhaps out of pity or mercy, Haruka would spare Jin time and time again

After so much conflict and violence, Jin's insanity eventually subsided, allowing him to heal both mentally and physically. But a new nightmare emerged to terrorize Jin's mind in the form of a pregnant Nanaha. Jin desperately sought out his teacher and fellow geneticist, Professor Hoshino, in hope that he would offer some advise and expertise to the situation. But because of his love of family, in the end, Hoshino decided to protect the child, much to Jin's dismay. In his rage, Jin assaulted Hoshino. The incident carried unforeseen consequences as the professor was cut by broken glass during the assault, glass from the test tube containing the DNA sample of Chihiro's Amazon cells and, as a result, Hoshino began to gradually transform into the first of the new-type Amazons.

Ignorant of the ramifications of his attack, Jin focused his attention on the threat his child posed, shunning him for the danger that he would become. His frantic search would bring him face-to-face with his nemesis Haruka, who informed him that Nanaha fled with their child, now named "Chihiro". Haruka proposed peace, but Jin, enraged, remained steadfast in his convictions and transformed, attacking Haruka. Both Amazons engaged in a fierce battle. But tired and weary, Jin managed to strike a decisive blow with his arm impaling Haruka's chest. Though hurt, Haruka mustered the might to slash Jin across the eyes his arm blades, blinding Jin and thus preventing him from searching for Chihiro. Both men badly wounded, withdrew from the battle in a draw as Haruka stumbles away while Jin is left groaning on the ground

In the present, he returns into action to take down the new type Amazons, smiling as he reunites with his son, telling Chihiro that he came to kill him.

Before Chihiro could recover from his shock, Jin asks his son about Nanaha. However, Team Amatsuki joins with Team Kurosaki and evacuates with Chihiro before he could receive an answer. Jin lingers around, stumbing about due to his impaired sight before he discovers a wreath - the same one Nanaha wore and wrapped Chihiro with when he was still an infant. He then discovers a shack, where Nanaha was originally staying at before she moved. Noticing a mural with a woman bearing angel wings, Jin recalls Haruka telling him Chihiro's namesake. Realizing that the mural was where Nanaha came up with the name, and realizing her intentions, Jin weeps.

After he leaves the shack, Jin looks at the mural, stating that he now realizes what Nanaha wanted, and resolves to take care of Chihiro.

Due to having found the wreathe used to bundle Chihiro when he was infant, Jin is able to find his scent. When he discovers him, he notes that he smells a lot like blood and asks where it came from, though he later remarks that it doesn't matter. He then proceeds to inform Chihiro that he knows Nanaha's wish: should Chihiro forsake his humanity, Jin would have to kill him. Chihiro is left in utter disbelief at this, and is forced to defend himself when Jin transforms into Amazon Alpha and attacks him. He also refutes Chihiro's claims that he wants to live, saying that it won't happen, and nearly manages to kill his son when he transforms into his Amazon Origin form. Jin is left completely shocked and caught off guard by the sudden transformation, and is forced out of his when Chihiro retaliates, taking the opportunity to escape.

Like Team Kurosaki and the remnants of Nozama Peston Services, Jin goes hunting for Chihiro with the intention to end his life. He is also currently unaware that Nanaha is actually alive and has become an Amazon, engaging in battle with Haruka and Mizuki

Jin doesn't take long to find Chihiro again, now in the former base of Team Kiss. After confirming that Chihiro was the one who killed Nanaha (which is actually not the case), both transforms and fights ferociously, but Amazon Alpha manages to land a critical blow to Chihiro, knocking him out of transformation. When it seems over for Chihiro, Hiroki Nagase helps his teammate, shooting Amazon Alpha in his neck and cancelling his transformation, allowing Chihiro to escape during the time. Enraged, Jin knocks Hiroki out.

Jin continues to chase Chihiro, finding Iyu in a grass field after her battle with Amazon Neo. Jin immediately recognizes Iyu as Professor Hoshino's daughter, and begins engaging the worn out Chihiro in another battle, easily defeating him. However, before he manages to land the killing blow, Iyu pierces his chest from the back.

Despite being heavily wounded, Jin had managed to survive his injuries. He is found by the Jellyfish Amazon, who strokes his cheek with its tentacles when he awakens, ripping off some of them and asking it if it was trying to eat him. He proceeds to bite into the tentacles to try and restore himself while the Jellyfish Amazon retreats, though Jin tries to trace it by scent. He becomes startled when he recognizes the smell as Nanaha's. Haruka then arrives with Mizuki; both are surprised to see him in such horrible condition. Asking if he is following the Amazon, he asks Haruka whether the Amazon was Nanaha, which he confirms. Horrified, he asks when this happened. Haruka informs him that Nanaha became infected with the Lysogenic Cells while she was pregnant with Chihiro, and states that because he helped her, he should be the one to kill her. Jin, however, refutes this, believing that because he loves Nanaha and Chihiro, he should be the one to end them, including the other Amazons as well. Haruka tries to reason with him, telling him they're family, but Jin refuses him once again, stating that he has no right to have a family, before devouring the rest of the tentacles he ripped from Nanaha, and proceeds to track her down.

Not long after, Jin manages to find the Jellyfish Amazon in a beach. After thanking his blindness for being unable to see Nanaha in Amazon form, he proceeds to transform in deepest lament. He starts attacking Nanaha while regretting her love for him, presses forward despite being ferociously assaulted by the Amazon's tentacles, until Mole Amazon interrupts their fight. He makes short work of the nuisance, then manages to pierce the Jellyfish Amazon's abdomen. Shido and his team use this chance to fire a heavy scattershot round, trying to end the Amazon, however the surviving Mole Amazon blocks the shot and thus climatically explodes, engulfing both Jin and Nanaha in fire.

Accepting his impending death, Jin embraces Nanaha, who apologizes for making him do another favor for her. Jin then realizes, that the mural of an angel he saw before was not Nanaha's request to kill Chihiro, but to kill herself instead. After commending him for being a good father, Nanaha pushes Jin out of the explosion, saving him.

The final showdown commences; Jin and Haruka encounter Chihiro near the shack with angel mural. When Chihiro thinks that everything was his fault, Jin denies, admitting that it was his sin instead, and that he will send his son to Nanaha's place. The three remaining Amazons transform; Alpha and New Omega once again work together against mutual threat of humanity.

Jin was later seen wandering aimlessly, lamenting of why Nanaha didn't let him go together with her and their son.

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