Reign of the Seven Spellblades, Vol. 4 (light novel) - Ruria Miyuki, Bokuto Uno

DON’T LET THE MASK SLIP​Another year gone at Kimberly Magic Academy means a new crop of first-year students. Oliver and his classmates, now second-years, see their studies becoming increasingly intense. The reality of life as a mage is a cold slap in the face... Nanao, meanwhile, is grabbing attention left and right due to her skills with a blade and her broom-riding talents. Dying for a reprieve, the six friends take a brief trip to the magicity of Galatea…but is their bond proving detrimental to Oliver’s clandestine duties…?