|Occupation|| Physics Teacher|
|Manga||Kakumeiki Valvrave: Ryuusei no Valkyrie|
|Voice Actor||Wataru Hatano|
Takumi is a physics instuctor at Sakimori Academy, but because of his aloof attitude towards everything and extremely casual tone, many find it difficult to see him as a member of the faculty. He seems to know one of the scientists who had worked on the Valvrave program. He later reveals that he and the rest of the staff at the academy (with the exception of Rion Nanami) and the adults of Module 77 were JIOR soldiers. Not much is currently known about Kibukawa, however as of Episode 9, information has been revealed that he and including the citizens of JIOR at Module 77 are soldiers.
Both Takumi and Rion are teachers at Sakimori Academy. After Dorssia destroyed the JIOR Dyson Sphere Takumi and Rion are the only adults in the presence of the Sakimori Academy Students and they look out for one another.
Takumi sees Yusuke as a promising student for his deep interest in engineering and machinery.