The Demon Sword Master of Excalibur Academy, Vol. 9 (manga)

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!