A century ago, the power of a mighty creature known as Hoopa, who is capable of single-handedly defeating legendary Pokemon, was captured in a bottle by a lone traveler. The bottle was then hidden deep inside a cave in the desert, in the hopes that the darkness sealed within it would never see the light of day again.

Years later, a young man finds the bottle and breaks the curses surrounding it, releasing the power confined within it. Its contents take the form of Hoopa's shadow, and it uses its unbound power to shatter the bottle and prevent anyone from capturing it again. The shadow then goes on a rampage and attacks the original Hoopa, while both Pokemon summon other legendary creatures to aid them in their brawl. Satoshi—a budding Pokemon trainer from the Kanto region—and his friends are caught up in the crossfire, and must now work to stop the ravaging Pokemon, or face a devastating clash of legends.

[Written by MAL Rewrite]

Special episode included in the Blu-ray Box of Ano Natsu de Matteru.

Daisuke Higashida is a serious first-year student at Higashizaka High School. He lives a peaceful everyday life even though he is not satisfied with the family who doesn't laugh at all and makes him tired. However, his father's company goes bankrupt one day, and he can no longer afford allowances, cellphone bills, and commuter tickets. When his father orders him to take up a part-time job, Daisuke decides to work at a nearby family restaurant in order to avoid traveling 15 kilometers to school by bicycle.

Let not an Outsider touch thee, Lest thou shalt be cursed forever. Once upon a time, in a land far away that was divided into two realms... The Outside was roamed by teratomorphic creatures who had the power to curse whoever they touched. Humans could live safely only in the Inside. But when a lost little girl from the Inside named Shiva, and a demonic beast-looking Outsider simply known as "Teacher" initiate a quiet coexistence on the same side of the forest, their bond seems to transcend their incompatible natures. It is the beginning of a folktale about two outcasts -one human, one inhuman- who linger in the hazy twilight that separates night from day. (Source: Production I.G)