Kurou Daijuuji is a poor detective living in Arkham City. One day, he was requested by Ruri Hado of Hado Financial Group, to search for a magic book. While he initially refused, Ruri offered him a large sum of money upon completion of her request, in which bribed Kuro to accept. As Kurou searches for the book, he unexpectedly runs into Al, a pretty girl that is actually a powerful grimoire. They forge a contract with each other, bestowing Kuro with powerful magic. Soon afterwards, Al also activates Demonbane, a deus machina owned by the Hado Financial Group, to combat the mechanical menace from the Black Lodge. With this, the war between the Hado Financial Group and the Black Lodge begins.... (Source: ANN)

Dog Days takes place in the world of Flonyard, an alternate Earth inhabited by beings who resemble humans, but also have the ears and tails of specific animals. The Republic of Biscotti, a union of dog-like citizens, has come under attack by the feline forces of the Galette Leo Knights. In an effort to save Biscotti, Princess Millhiore summons a champion from another world in order to defend her people. That champion is Cinque Izumi, a normal junior high student from Earth. Agreeing to assist Biscotti, Cinque retrieves a sacred weapon called the Palladion and prepares for war. In Flonyard, wars are fought with no casualties and are more akin to sports competitions with the goal of raising money for the participating kingdoms. Cinque is successful in his role as Biscotti’s champion, but learns that a summoned champion cannot be returned to their home world. The scientists of Biscotti will endeavor to find a way for Cinque to return home, but until they figure something out, he must serve Princess Millhiore by continuing to fight as Biscotti’s hero.

Cinque returns to the land of Flonyard in Dog Days' to resume his duties as the hero of the Biscotti Republic and it's as though he never left! The difference this time is that he's brought two friends with him who become heroes in their own right: childhood best friend Rebecca Anderson, who becomes the hero for the Principality of Pastillage at the urging of their leader Princess Couvert Eschenbach Pastillage, and his cousin Nanami Takatsuki, who becomes the hero for the Galette Lion Dominion. As with the first season though, with so many secrets to be uncovered and mysteries to be solved, will there even be time for the athletic events that these three hyper and athletic teenagers love to participate in so much?

Middle schooler Mana Aida is known for her vivid passion and kind-hearted disposition, especially by her friends Rikka Hishikawa and Alice Yotsuba. While the girls are on a school field trip, otherworldly villains from the "Trump Kingdom" appear and create giant monsters from the civilians' selfish desires to cause havoc. In the midst of finding a way to stop the destruction, Mana encounters "Cure Sword," a mysterious Precure warrior. As Cure Sword engages in combat with the monsters, Mana meets Cure Sword's fairy allies, who tell her that she also has the ability to transform into a warrior herself. When Trump Kingdom's invaders begin to outnumber Cure Sword, Mana takes to the battleground with resolve. She partners with Sharuru, one of the fairies, and transforms into "Cure Heart"—the Precure of Love. In her attempts to ally with Cure Sword, Mana ends up pulling Rikka and Alice into the fray, whom each partner with a fairy ally to transform into "Cure Diamond" and "Cure Rosetta," respectively. Together, they battle against the Trump Kingdom invaders to protect the love in the world from being destroyed. [Written by MAL Rewrite]