魔王すらも恐れる人類最強の9人が属する組織『災厄の数字』の一員、『絶氷』のクレスはとある特殊任務を命じられる。
「ボス、俺は誰を暗殺すれば……って、えッ?」その驚くべきミッションとは、魔術学園に生徒として潜入し、ニホンという【東の国】から召還された”勇者達を監視せよ”というものだった! SSS級の能力で楽々実技試験を突破し魔術学園に入学を決めるも、戦闘や暗殺を生業にするクレスにとって美少女勇者の監視任務は想定外な出来事の連続で!?
WEB発大人気作品が大幅加筆により新生。世界で9番目位の実力者・最強氷術使いによる波乱の学園潜入生活が今、はじまる!
Cress of “Ice”, a member of the organization “Disaster Numbers” to which the nine strongest human beings who fear even the Demon King belong, is ordered to perform a special mission.
“Boss, who should I assassinate …?” The amazing mission is to infiltrate the magic school as a student and watch over the “heroes” summoned from the [eastern country] of Japan. “It was! SSS-class ability easily passed the practical test and decided to enter the magic school, but for Cress who makes a living in battle and assassination, the surveillance mission of the beautiful girl hero is a series of unexpected events !?
A very popular work from the WEB has been reborn by major revision. The turbulent school infiltration life by the 9th most powerful person in the world and the strongest ice technician is about to begin!