| “ | Treasures are irrplaceable. | „ |
| ~ Daiki's boast when stealing a treasure |
Daiki Kaito is the deutragonist of Kamen Rider Decade. Using Diendriver/NeoDiendriver, he can transforms into Kamen Rider Diend.
He is portrayed by Kimito Totani.
History[]
Origins in the World of Diend[]
Daiki Kaito is from the World of Diend, an alternative world. He worked as a cop for the totalitarian Fourteen in this planet, who considered Kamen Riders to be a danger to the public's safety. When Daiki learnt that Glaive was actually his own brother, Junichi Kaito, his objective to apprehend Riders such as Glaive, Larc, and Lance took a personal turn. Daiki was disillusioned when he discovered that Fourteen was brainwashing others, especially Junichi. He changed into Kamen Rider Diend and became a fugitive in his own world after stealing the Diendriver from Dai-Shocker in an attempt to atone for his previous deeds.
Journey Through Alternate Worlds[]
Following his escape from his own planet, Daiki travelled across several Alternate Reality (A.R.) Worlds in search of what he called "treasures." He met Tsukasa Kadoya (Kamen Rider Decade) and the Hikari Studio crew while travelling. Daiki was initially self-serving, but as their conversations progressed, a more nuanced side emerged. Notably, he helped fight against strong opponents like King Dark and Super Apollo Geist, demonstrating a change from merely seeking riches to standing up to more serious dangers.
Involvement in Kamen Rider Zi-O Timeline[]
Daiki reappeared with the enhanced NeoDiendriver during Kamen Rider Zi-O. In an attempt to get strong Ridewatches, he briefly sided with White Woz and even worked with the enemy Swartz. Daiki was changed into Another Zi-O II at this time, although he was finally released from this condition. He showed a more altruistic side by playing a significant part in helping Tsukasa and Sougo Tokiwa (Kamen Rider Zi-O) in their fights, demonstrating his growing sense of responsibility.
Personality[]
Daiki Kaito is known for having a complex and mysterious personality. Although he appears to be happy and frequently has a fun manner, those around him may find him irritating. But beyond this exterior, there is a serious and driven person who is particularly noticeable in battle circumstances. His main driving force is the desire to get "treasures," which he considers to be extremely valuable both physically and symbolically.
Daiki has moments of true friendship despite his selfish inclinations, especially when he is with the Hikari Studio crew. He shows a feeling of devotion and an underlying moral compass by occasionally helping them in crucial fights. But he frequently acts for his own benefit, and he doesn't hesitate to take advantage of circumstances.
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 Heroes
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