Original Name (Japanese): 高山 ケイト Romanized Name: Takayama Keito Nicknames: Kate, Onee-chan (by Maria) Series: Boku wa Tomodachi ga Sukunai (Haganai) Age: 16 (initially claimed to be 15) Weight: Unknown Height: Unknown Date of Birth: Unknown Blood Type: Unknown Personality Kate Takayama is the older sister of Maria Takayama in the Boku wa Tomodachi ga […]