After graduating from high school, Natsuko Hirose starts her career as an animator. Her talent quickly flourishes, and she makes her debut as a director in no time. Her first anime becomes a massive hit, sparking a social phenomenon and earning her recognition as an up-and-coming genius director. Her next project is set to be a romantic comedy movie themed around first love! However, having never been in love herself, Natsuko struggles to understand the concept of first love, and as a result, she's unable to create the storyboard, causing the movie production to come to a standstill. One day, she passes out while working on her storyboard and wakes up in the world of her favorite childhood anime movie "A Tale of Perishing."

Duchess Leticia Dorman has been betrothed to Crown Prince Clarke since age seven. She was once a rambunctious and free-spirited child, but the strict education she’s receiving to make her a fit future princess has really put a cramp in her lifestyle. Her only hope is that the prince might someday take an interest in someone else—so when Clarke shows up to a royal ball with an unknown woman at his side, Lettie is overcome with delight, presuming her dream has come true and her engagement has been broken off! She wastes no time retreating to an easygoing countryside life, but her newfound peace is cut short when the prince shows up and claims she’s still his fiancée! Clarke is determined to win Lettie over and marry her, while Lettie is determined to resist his charms and escape! Who will emerge victorious in this heart-pounding battle of wills?

When Teruaki Nakamura transfers to laid-back Okinawa, he falls for the lively Kyan-san—but her dialect is a complete mystery to him. With Higa-san translating, Teru's misunderstanding-filled island life takes off...and subtle hints suggest Higa-san might want his heart too. On this serene island, love flows as freely as the ocean breeze!

Unlike his twin brother, Yukio, Rin Okumura never wished to know about their parents and the circumstances surrounding his own birth. Yet the master of time, Mephisto Pheles, gives Rin a key that transports him 40 years into the past when his late mother, Yuri Frederick Egin, was merely a child. With Mephisto's guidance, Rin leaps through the years of Yuri's childhood and her adolescence as an exorcist-in-training. Early on, Yuri meets Shirou Fujimoto, Rin and Yukio's adoptive father. As Rin follows Yuri and Shirou's lives, he witnesses firsthand the initial appearances of Satan, his true father, and the horrors unfolding at the True Cross Order's special Section 13. Yuri's unique connection to Satan eventually leads Rin to the truth behind the most horrific event in exorcist history and the day he and Yukio were born—the Blue Night.