Batgirl and Supergirl face their toughest challenge yet from the unlikeliest of sources, as Mr. Mxyzptlk vengefully gifts some of his power to Harley Quinn, who uses it to shrink and punish the heroes at her filthy feet.

Dylan is a mediocre university student with terrible grades who has, against all odds, managed not to fail. The only thing he does is lock himself in his room writing what he loves most: giantess stories. Since his teenage years he has carefully kept this secret from his mother, Emma — a strong-willed and temperamental woman who raised him alone after his father’s death.

One day, however, Emma discovers everything on his computer. Unwilling to let her son continue being a pervert, she decides to punish him in the cruelest way possible: by making his fantasy come true… and turning it into a living nightmare.