Masato Kusaka is an anti-hero turned anti-villain and the tritagonist of Kamen Rider 555, he's a member of the Ryusei School and is able to wear the Kaixa Gear without disassembling it, and was the main wearer of the gear as Kamen Rider Kaixa.
Kusaka is a very problematic person. Kusaka was forced to live in an orphanage, where he was constantly bullied by others, and due to Smart Brain's cruel actions, he developed a kind of psychotic personality. He harbored a fierce hatred towards Orphnochs, and was convinced that they would eventually become a threat to humanity, so he made it his mission to become their executioner.
Basically, Kusaka behaves politely towards everyone, except for Takumi. However, this is just a facade to hide his true nature as a selfish, spiteful, vindictive, and skilled manipulator, and he is trying to get Mari to become his own with those around him like Takumi and Kiba. Kusaka have no hesitation in driving a wedge. This is to the extent that he sometimes puts Takumi in potentially life-threatening situations without caring if he causes someone to die.
Kusaka participates in any exercise routine to test his stamina, often lapping his palms before and after his workouts. The reason for this habit is due to the trauma of being attacked by Smart Brain along with his students and being killed himself after Mari's blood got on his hands.
Despite his extremely cruel attitude towards Orphnoch, Kusaka is shown to be able to care for others to some extent, albeit moderately in a kind of perverse way. Kusaka clearly states that Mari is her mother, whom she has always admired since she was a child, and is very protective of her and has a sense of revenge against those who hurt her.
Apart from Mari, Kusaka shows a certain level of kindness due to the time he has spent with Keitaro and the Ryusei students. Additionally, even though Kusaka knows that Hanagata's true identity is the goat Orphnoch, he feels conflicted about killing his father and the man he adores, and he clearly feels his sadness when he actually dies.
Although Kusaka was far from a noble man, he did have some sense of ethics, at least when it came to his role as protector of humanity. In addition to his actions as Kaixa, he reluctantly allowed Takumiandotherallies to fight alongside him, even though he had little regard for their safety. Another notable thing is his concern for his companions, such as instructing nearby bystanders to run away whenever he fights Orphnochs.
Tragically, Kusaka's inability to fully overcome his painful past becomes his fatal flaw, and the use of Kaixa Gear gradually destroys his body, before he is killed by his mortal enemy.
History[]
Ever since he was killed by the Dragon Orphnoch and revived, Kusaka has had a relationship with Orphnoch, which has increased his hatred towards Orphnoch. At first she acted friendly towards Takumi Inui, but eventually her true nature was revealed and her motives became clear.
Kusaka is the only person to wear all three Kamen Rider belts. He was wearing Faiz Gear to trick Yuji Kiba. He wore Delta Gear and fought the beetle Orphnochs.
Kusaka has been implanted with more Orphnoch DNA, allowing him to safely use Kaixa Gear for a time, but towards the end of the series it begins to wear out, and the use of Kaixa Gear becomes increasingly harmful to him. became. Eventually his neck is broken by Yuji Kiba, and he claims Kaixa Gear as his own towards the end of the series, dying after all of Orphnoch's DNA is depleted and shattered into pieces without Takumi and the others noticing. It shattered into pieces. His death followed until a photo of young Mari was later discovered. Although Takumi did not like Kusaka's attitude, he understood that he was also a victim of misfortune in a sense and showed him sadness.