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Official Site: Bandai

is one of the characters in Kamen Rider Kabuto. His name is a pun on sasori, the Japanese word for "scorpion" (his motif), and "sword". He is the only Rider in the show that is not based on an insect, but an arachnid.

is a 20-year old man and descendant of the Discabil family of England. He calls himself "the man who replaces the gods (Kamishiro) with a sword's slash (Tsurugi)" when he introduces himself. He lives in a gorgeous European-style building with his butler Jiiya. He is good at sports, art, study, and many other skills, and has been seen to be able to understand and speak French, Chinese, and Italian in addition to English (he says "Shall we?" to Tendou when a fencing duel begins, and referring to Kagami as "[His] best friend" in English) and Japanese. However, despite Tsurugi being a multi-talented man that is even capable of matching Tendou Souji's own skills, there are 2 things which he can't match Tendou at: cooking (virtually, his culinary skills are nonexistent, which is why he mispronounces "ramen" as "La Men" and thinks that it is a French dish as well as some other words such as "tofu" as "tufu") and normal social skills (which is why he has a hard time socializing with "Normal People", as he himself is a pampered rich boy and is oblivious to the "Normal World" outside his mansion). He always calls Kagami his friend (while pronouncing his name KaGAmi (カ・ガーミン), stressing the GA in his name) and Misaki as "Misakinu". Tsurugi wants to be the man who is best at everything, always saying, "I will stand on top of… (e.g. tasting, kendo, bowling etc.)". Unlike Tendou who quotes his grandmother, Tsurugi quotes his butler, Jiiya instead.

Tsurugi is also as arrogant as Souji, and proclaims that he will stand on top of everything, and that no laws can affect him (in fact, a traffic cop who pulled Jiiya over for speeding (as Tsurugi had an urgent job) only to be killed on the spot by a SalisWorm told him to put his seat belt on, and Tsurugi's failure to look before crossing a street resulted in an accident in which Souji's younger adopted sister Jyuka got hurt, and as the cops scorned him, he told them that the car carrying Jyuka should have gone ahead (much to the shock of the cops) and Souji punched him at Jiiya's white limousine for getting Jyuka hurt). He had an older sister named Mika (23 years old) who was killed by Scorpio Worm, and suffers nightmares as a result. The fact that Mika was killed near a field of red roses also sparked a disdain for roses. He has been employed to ZECT in exchange for the reward, but the monetary part of his contract was annulled when the Gatack system was first utilized. He aids Kabuto after he helped him realize that his butler Jiiya, was teaching him to be a better person now utilizing what his mentor taught him: that a noble act must be nobly returned, aka "noblesse oblige".

In truth, Tsurugi was killed on the same day as his sister by Scorpio Worm. Moments before his death, Scorpio Worm choose to mimic him. Through impossible odds however, Tsurugi's arrogant nature and personality overpowered Scorpio Worm's own, leading him to believe he was in fact Tsurugi Kamishiro, completely unaware of his Worm identity or that he had killed his sister. Jiiya later revealed he had been aware of his master's true identity, but believed it best to withhold the information in the hopes Scorpio Worm would never regain control and his master would continue to exist, one way or another. Shortly afterwards through unknown means, Tsurugi came into contact with the Sasword zecter and accepted his role as Kamen Rider Sasword with the goal of exterminating every last Worm.

Kamen Rider Sasword has not been a contender in any CBUB matches.