Transported to the world of spirits and magic, Ayumu becomes Fabian, a genius young mage. Too bad Ayumu himself has no clue about any of this magic gibberish! Can he live up to Fabian's name?

Ayumu Shinohara is your run-of-the-mill high school student who doesn't stand out in any way. He can't be more different than Fabian Aes Berion whose body he ends up transported into.
Now that Ayumu is Fabian, can he keep up the genius mage's image, hone his magical craft, advance magical research, navigate nobles' schemes and—most importantly—meet his own expectations? Or will he get busted in the process and expose himself as a fake?
Thankfully, he has the assistance of Fabian's partial memories as well as people who care about him: Lucy, his loyal, seemingly emotionless maid, and Mary, his energetic but sharp fiancée!
Maybe with all of that, he can finally stop being a failure...

As they say: Fake it till you make it!