Kasuga Arata lived a normal life together with his childhood friend, Hijiri, in a small town. However, everything changed on the day of the Black Sun, and a magician appeared before him. The Black Sun caused the Breakdown Phenomenon which destroyed the town where he lives. Because of this, his normal life was artificially reconstructed by a grimoire that his childhood friend had left. The appearance of the magician led him to a new life in the Royal Biblia Academy and meeting the members of the Trinity Seven.
Later he learns the only way to rescue his childhood friend is to become friends and use the magic of the Trinity Seven the most powerful magic users in the school with his own power of Lord Demon Candidate. The offers some great comedic moments mixed in with some good magic battles . But outside the typical Harem story the elements that make it most unique is the magic .
Magic in this universal is all based on the opposite of our most negative trait . For example Kasuga most negative trait is he is a massive pervert. So he soon realizes his magic and power is based on control.
Overall the story is fun fast paced with a good sense of humour . Quite enjoyable for a Harem show in today’s current Anime season