Also known as: 異世界サムライ, Samurai_In_Another_World
A Samurai fantasy manga by Saitou Keigo.
The story follows Tsukitsuba Ginko, a female samurai who wishes to fight powerful opponents so she can die a honorable death after surviving the Sengoku era. Ginko's wish is granted when she gets transported to a fantasy world where the inhabitants are threatened by demons.