One day, the bright red sun stopped shining, causing the “Breakdown Phenomenon”—the destruction of Arata Kasuga’s town and the disappearance of the people inhabiting it. All, however, is not yet lost; by utilizing the magical grimoire given to him by his childhood friend and cousin Hijiri Kasuga, Arata’s world gets artificially reconstructed.
In order to investigate the phenomenon, Lilith Asami appears before Arata, whose artificial world suddenly disintegrates. He is given two choices: hand over the book, or die. However, Arata chooses the third option—enrolling in the top-secret magic school Royal Biblia Academy, where six other magical users await him. Together with Lilith, these six form the Trinity Seven, the elite of the school who each bolster their own power and skill.
With the ambition to save Hijiri and the help of his newfound friends, Arata stops at nothing to prevent the destruction of his beloved hometown and to bring his best friend back.
[Written by MAL Rewrite]
This is a fan service harem, and the gimmick this time is that they are all trope characters but it’s the guy who is the perverted one. That kind of person is less annoying to watch but it is still terrible to see in a harem. It is a typical show, play around with fan service and then save the world. Basic harem stuff, I do not recommend.