As a young boy, Prince Oscar Lyeth Increatos Loz Farsas was cursed by the Witch of Silence, rendering it all but impossible for any woman to bear him a child. After 15 years of fruitlessly seeking a way to lift the spell, Oscar resorts to enlisting the help of a different witch. To this end, he heads to the Azure Tower, home of the Witch of the Azure Moon. Ascending the tower is no easy task; for decades, no one has overcome the array of traps, puzzles, and enemies designed to repulse any challengers. Oscar, however, easily climbs to the top, where he meets the fabled witch, Tinasha. To the prince's surprise, despite being hundreds of years old, Tinasha looks like a beautiful young woman in her late teens. Oscar explains his circumstances to the witch, who quickly perceives the true nature of his affliction. Though she claims that undoing the spell would be tremendously difficult, Tinasha proposes a workaround—to find Oscar a partner capable of withstanding the curse's effects. Realizing that such a woman is right in front of his eyes, Oscar boldly tells the witch to marry him. Though he is promptly rejected, the young prince refuses to back down, and the two eventually reach an agreement: Tinasha will leave the tower and live with Oscar for the next year. As the two continue searching for a way to lift Oscar's curse, word of Tinasha's emergence from isolation spreads, catching the attention of all sorts of old acquaintances.

Sumireko Ogawa is a busty bookstore clerk who wants to become a novelist after some writing success in her youth. When strange occurrences start cropping up around the city, she teams up with her flirtatious co-worker Ren Adashino to look into them. But Ren is hiding a secret of his own! With their combined skills of occult knowledge, what will they discover as they investigate?

Shidou Itsuka faces greater peril than ever due to his continued involvement with Ratatoskr. He has already sealed 10 Spirits, and Isaac Westcott, leader of Deus Ex Machina Industries, has finally decided to kill Shidou and plunder the Spirits' powers for himself. To achieve his goal, Isaac declares an all-out war against Ratatoskr, forcing the organization to exhaust its resources to ensure Shidou's survival. Despite being severely outnumbered and outmatched, a glimmer of hope exists in the form of the Spirit of Time, Kurumi Tokisaki. Shidou must seal and acquire Kurumi's power to travel to the past and confront the Spirit of Origin—the catalyst that started it all.

Set on the planet Yietta, whose colonists make their living by exploiting the planet's unique liquid-gas oceans, Plastic Little begins as the Yietans are finally about to pay off their debts to the Galactic Federation. Unfortunately, there are those who would rather not let Yietta slip through their fingers... Enter Tita, 17 year old captain of the Cha Cha Maru. Together with her crew, Tita specializes in capturing Yietta's exotic life forms for intergalactic pet shops, but through plain bad luck she finds herself, instead, at the core of a sinister plot to take over Yietta! By rescuing 16 year old Elysse from the very clutches of the military, Tita puts the lives of both herself and her crew in mortal peril... but a girl's got to do what a girl's got to do! As the plotters mobilize their forces in a desperate bid to retrieve Elysse, whom they believe possesses a vital computer code, Tita must play a dangerous game of tag with an entire army of professional killers! It's Cat and Mouse on a planetwide scale, with one crucial difference: Mice don't shoot back, but Tita's does!