Lecherous high school boy Hanappe is visited by two demons who step from his TV and immediately fall in lust with his mother and sister. The demons turn Hanappe's home into a meeting ground for their demonic friends and grant Hanappe the power of the Hanappe Bazooka. Now his index finger is capable of both a deadly blast and the ability to drive women in a lustful frenzy, but Hanappe isn't very good at controlling it and winds up in serious trouble.

The film's story is set in the Doll Kingdom where dolls reside. Happiness Charge PreCure are asked to help by a women named Tsumugi when the sudden appearance of Saiarks begin wrecking havoc upon the Kingdom. However all is not what it seems with the mysterious man Black Fang dwelling in the shadows.

Kurotori Chiyoko, a 5th-grader in elementary school, loves the occult. One day, a friend requests her to do a love fortune-telling. Chiyoko tries to summon Cupid, but thanks to a stuffy nose, accidentally summons a witch named Gyubid instead! From that day on, Chiyoko starts learning witchcraft from Gyubid, the self-proclaimed hottest instructor of the magic world. The training regimen is tough, and punishment for slacking is harsh. Fortunately, Chiyoko is able to keep her extra-curricular studies secret, aided by the fact that no one else can see Gyubid.

Saito Hiraga and Louise Françoise Le Blanc de La Vallière go on the offensive after the events of Zero no Tsukaima: Princesses no Rondo. Together, they face off against King Joseph in the Holy City of Romalia with the help of two others who control the power of the “void”. But in the midst of the many conflicts ahead of them, an ancient evil begins to stir in the shadows. Will their close bonds blossom into something more or will they be shattered through the ever increasing difficulty of the tasks that they must undertake? Zero no Tsukaima F follows the story of Louise and Saito as they face their final challenges together.