The story follows the daily life of a group of birds, including a duck, an old nihilistic great grey owl, and a gluttonous Caique parrot. (Source: ANN)

At the behest of her father, Yui Komori goes to live in a secluded mansion, home to the six Sakamaki brothers—Shuu, Reiji, Ayato, Kanato, Laito, and Subaru—a family of vampires. Though at first the siblings are confused as to why the girl has arrived, they soon realize that she is to be their new sacrificial bride, not to mention their other, more carnal intentions for her. After meeting the brothers, Yui quickly begins to question why her father would have sent her here and why she feels a strange, new pain in her chest. With each brother more sadistic than the last, Yui's life as a captive takes a harrowing turn in her new home. As her days turn into endless nights, and each brother vows to make her his own, Yui falls deeper and deeper into madness and ecstasy.

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.

Mana is given a wedding dress which was worn by her mother and grandmother. All of sudden a mysterious man named Matthew appears and takes her to the past world. Mana is so glad to meet her grandmother and her beloved dog Maro that she had a long time ago, but she can't find two of her best friends Rikka and Alice. It looks her precious memories have been changed somehow. If things continue as is, the future will be ruined, too. The Precure girls have to fight to protect their memories and future!! (Source: Crunchyroll)