Kate Takayama (20F) (高山 ケイト, Takayama Keito) is a supporting character from the Boku wa Tomodachi ga Sukunai series. She is the older sister of Maria and a nun at St. Chronica's Academy.

Her Nicknames

Sister Kate (By the students of St. Chronica's Academy)

Mother Kate (By some students) [2]

Kate-sensei (By Kodaka)

Old hag (by Maria)

Onee-sama (By Maria)

Onee-sabitch (By Maria)

Poopy Old Hag (By Maria)

Pooper Trooper

Big Sister Poop

Hag

Poopy Head

Dummy Fart Freckles Idiot