Summer Days with Coo

Invited to a wealthy client's mansion, time-traveling witch Yuko and her companions arrive to find a group of collectors assembled to participate in a mysterious auction. And the mystery only deepens when the collectors go missing one by one. As more guests disappear and strange occurrences abound, Yuko and her friends realize they must solve the mystery before they vanish as well.

The battle is over, and they can go about their normal lives now... or so they thought. With no time to rejoice after miraculously saving Mirai from Beyond the Boundary, Mirai lost all her memories. Akihito, now a high school senior, starts to avoid Mirai thinking it’s for the better. Not aware of Akihito’s feelings, Mirai tries to get closer to Akihito. Then, someone who knows of Mirai appears in front of the two. With Akihito’s troubles in vain, Mirai once again sets forth on a battle that forces her to look within.

Nobita is followed by a stray dog on his way home and decides to help it find its original owner with the help of Doraemon. They find out that the dog is actually a prince in its homeland in Africa.

In the underground Diamond Domain, where many Carbink live, the Mythical Pokémon Diancie serves as ruler. The Heart Diamond that sustains the land is beginning to fall apart, and Diancie is not yet strong enough to create a new one. While seeking help from the Legendary Pokémon Xerneas, Diancie encounters a group of thieves who want to take control of its diamond-producing power–and who awaken the Legendary Pokémon Yveltal from its cocoon in the process! Can Ash and his friends help Diancie discover its true power, stop Yveltal’s rampage, and save the Diamond Domain?

Something sinister's afoot in Kasukabe. Shin-chan doesn't know what it is, but he's pretty sure it involves samba-dancing doppelgängers.