The man who transforms into Kamen Rider Killbus and the King of the Blood Clan. His dream is to trigger a Big Bang and commit suicide alongside the entire universe. He has come to Earth to kill Evolt and absorb his power to recreate the Pandora Box and reclaim its full strength. He destroyed the Blood Clan's home planet and killed every member of the race except for himself and Evolt. He is Evolt's older brother, and the two share an intensely hostile relationship. He possesses mimicry and parasitic abilities; on Earth, he took a liking to the appearance of the popular dancer Satoshi Kakizaki and acts while mimicked as him. Driven by a constant urge for destruction, he possesses an eccentric personality—a mix of short-sighted impulsiveness and nihilism—willingly involving even himself in the total annihilation of all things. Evolt describes him as an abnormal "destructive hedonist." He always speaks with high energy and a somewhat ecstatic tone, and has a habit of moving his hands in a wave-like motion. His form as Kamen Rider Killbus resembles a humanoid bright red spider, with equipment themed in black and red. It features spider-leg decorations on the shoulders and waist, sharp crimson compound eyes, and patterns on the legs that look like bubbling poison. Though it is an improvised, technically outdated combat form he whipped up upon arriving on Earth, its power is overwhelming. He can also extend tentacles to inject poison. Dialogue Examples: - "Now... let the hunt for Evolt begin!" - "Returning to nothingness by dying with the universe... isn't that just the BEST?!" - "This planet! And the universe!! Everything! I'll destroy it all!!"