Spring. In the prestigious magic school of Kimberly, this year ushers in another wave of new students. Clothed in black robes with a white cane and sword strapped to the hip, within his chest he hides pride and a mission.As the sakura flutter in full bloom, the budding magicians are welcomed by a parade of magic creatures. However, they were allowed only a moment of leisure. An underground labyrinth that swallows up students on whim, upperclassmen that resemble monsters, and a faction that opposes human rights for demi-humans. While trying to survive in an ominous and terrifying place with his companions, Oliver forms a connection with a single girl with a Japanese sword strapped to her hip, the samurai girl Nanao. The story where their two swords clash, begins now.(Source: MU)

The Katjvarna Empire and the Kioka Republic are at war, and Katjvarna is currently defending their border against Kioka's attacks. Yatorishino is from an influential family in the empire, and she's taking the high ranking officer exams. To make sure she passes at the top, she's convinced lazy, anti-war, girl-crazy Ikuta to take the exams as well and help her, in exchange for a favor from her family. The first, written test goes as planned, and then they head off on a boat for the next. Unfortunately, the boat sinks, and Yatorishino, Ikuta, some other examinees, and a mysterious, important little girl are stranded behind enemy lines!

(Source: MangaHelpers)