Seiken Gakuin no Maken-Tsukai 7 (MF Bunko J) [Light Novel]

[Machine Translation] The Dragon King Veira encounters the most powerful demon king who ruled the ancient sea in the "Sky Castle" at the bottom of the sea. In the "castle in the sky" that lies at the bottom of the sea, the Dragon King Veira encounters the most powerful demon king who ruled the ancient sea. The two demon kings clash with sparks flying. Meanwhile, the 18th Platoon, to which Leonis belongs, is to participate in the "Seiken Kenbai Matsuri", a martial arts tournament for holy swordsmen to be held in the "Imperial Capital". Sakuya becomes a subordinate of the Demon King for revenge, Regina is guided by her royal destiny, and Elfine is determined to fight the Fillette family, who are behind the "Demon Sword Project". With their respective fates, the stage is set for the last absolute defense of mankind in the Imperial City of Camelot. There is no calm before the storm. Before the storm comes the "Demon King"!

「―“海王”リヴァイズ・ディープ・シー!?」海の底に眠る“天空城”で、竜王ヴェイラが遭遇したのは、古代の海を支配した最強の魔王だった。火花散らし、激突する二人の魔王。一方、レオニスの所属する第十八小隊は“帝都”で開催される聖剣士の武闘大会、“聖剣剣舞祭”に参戦することに。復讐のため魔王の配下となる咲耶、王家の宿命に導かれるレギーナ、“魔剣計画”の裏で暗躍する、フィレット家と戦う覚悟を決めたエルフィーネ。それぞれの因縁を抱え、舞台は人類最後の絶対防衛戦―帝都“キャメロット”へ。嵐の前に静けさはない。嵐の前には“魔王”が来る―!!