The Demon Sword Master of Excalibur Academy

Leonis and the rest of the eighteenth platoon have returned from the abandoned city, just in time for the Holy Light Festival — a schoolwide celebration jointly held with the Sixth Assault Garden. The dorm’s event of choice? A haunted café, complete with tasty treats and cute costumes—including one for the Dark Lord himself! But even during this relaxing moment, evil stirs beneath the surface, and Nefakess has turned his sights to the silver-haired vampire by Leonis’s side…

As Leonis is showing Veira around the Seventh Assault Garden, they are suddenly attacked by Muselle, the foe Leonis previously defeated, who should have lost the power of his holy sword. Meanwhile, Elfiné finds out about the Demon Sword Project—a plan to evolve Holy Swords secretly being carried out in the Academy!

From a statue buried in ancient ruins, Riselia finds a hint that her young friend Leonis isn’t quite who he claims to be. When faced with his minion’s questioning, will the Dark Lord reveal the truth about his identity…? Meanwhile, as the students of Excalibur Academy settle back into their everyday lives, Sakuya still finds herself plagued by nightmares of her past—both figuratively and literally. When a demonic group from her homeland known as the Kenki Gathering makes its way to the Seventh Assault Garden, it’s up to Sakuya to put a stop to their nefarious plots!

The Kenki Gathering’s plans are in motion, and the Seventh Assault Garden is to become their sacrifice. Sakuya gives her all to fight back, but nothing can prepare her for the familiar face she finds beneath her opponent’s mask! When it comes to unexpected reunions, though, Sakuya isn’t alone. With the fate of his kingdom and everyone he’s grown to love on the line, Leonis must confront an old foe he knows all too well—and resolve a thousand-year-old grudge!