The Wizarding World is at the age of recovery after Harry Potter defeated the Dark Lord Voldemort.
All is well.
All had been well until a visitor from another realm appears before London.
Everyone is taken aback to find out it wasn't a mere visit but a phase of invasion from legends and gods that Harry and Hermione only read in the books back at Hogwarts.

Hermione Granger has a deadline she needs to reach before the whole Wizarding World they've tried so hard to save crumbles at the feet of the god of Mischief, Loki.

The brightest witch of her age must prove that the Wizarding World, if guided accordingly, can prove itself worthy to live on its own and not be ruled by any other realm or god.

The god of Mischief bows to no one and yet agrees with a truce that if he would win over, would mean that the whole Wizarding World would succumb under his rule.

Across the universe, they had found one another - the battle is not only of magic and wits.
Who shall lose first when the war of the worlds soon becomes something else?

For soon they shall discover that nothing is ever fair in love and war - for there is no witch nor god when it becomes the affairs of the heart.