Linn

Linn is a friend/assistant of Vesper.

Biography
First appearing in Alter: Intro, Linn was seen stowing away in a boat. She then meets and asks for the assistance of Vesper who was walking by on a mission for the Necromancer. After the two escape the royal guards, Linn agrees to go on a mission with Vesper, where it is shown that she is on par with Vesper's fighting skill, enough to impress the Necromancer. While on the mission with Vesper she had access to the Blue Pearl imbued in her sword. While fighting the Master Guard she learns Vesper's whole name and that before he had died. In Episode 5 after learning what Vesper was she later gave the Blue Pearl back to Vesper. Later Linn saved Vesper from being killed and killed the Master Guard, angrily demanding from Vesper to tell her what was going on. Her katana seems to be able to eventually cut into whatever it hits if it collides with the said item enough times, and shows a sign of being able to do so by when the edge of the blade shines as explained in episode 6.