Kareinaru Sword Master to Saikyou Naru Fusho no Deshi

is a Japanese light novel series written by Takamaru Segawa, with illustrations by Hidori. The series began publication on September 10, 2014 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
A boy from an island not even on the map. She tries to help a girl who is being attacked by a thug, but she is helped. A dignified beauty with a hard tone.

It's a strange girl, but that should be it.

It is said to be Haruka, the daughter of a warrior who was touted as a sword god. Haruka was involved in the battle for the sovereign of the King Wu school, one of the largest schools on the continent.

Naturally, Shirogane offered help, but as a result, Haruka became a disciple first !?