Akari Mizunashi continues her training to become a Prima Undine (a professional tour guide gondolier) along with her friends Aika and Alice in the peaceful city of Neo Venezia. Despite the fact that these three girls are from competing companies, they are constantly together, learning more about how to become better tour guides and more about the mysteries of Neo Venezia. As the group continues to meet interesting and unforgettable people through their daily routines, they will also come closer to the secrets that make the enigmatic and ever beautiful city of Neo Venezia so warm and alive. Welcome back to Neo Venezia: the city where miracles can be created by hand.

After Akihito Kanbara reunites with Mirai Kuriyama—whom he believed had vanished after defeating Beyond the Boundary—he discovers a heartbreaking fact: Mirai has lost all memory of him, their friends, and her past as a Spirit Warrior. Akihito is utterly devastated, but realizes that she has a unique opportunity. Mirai can finally live the life of a normal girl—where she'll be completely devoid of the supernatural society that both shunned and used her. While it's all for the sake of Mirai's happiness, the price is costly—Akihito and his friends must keep her true origins a secret from her, and as a result avoid befriending her. However, the troubling memories of Mirai's old life gradually begin to resurface, and a mysterious new evil leads a group of shadow-like creatures into the city with the goal of seeking her out. As the situations become dire, Akihito must fight to protect himself, his closest friends, and Mirai—the bespectacled beauty he holds most dear. [Written by MAL Rewrite]

For this year's Nadeshiko Festival, Sakura Kinomoto's elementary school class is presenting a play. She will portray a princess who struggles to respond to the love confession of the neighboring country's prince. Sakura empathizes with her character all too well, since she herself still owes an answer to the boy who confessed his love for her four months ago. When cousins Shaoran and Meiling Li return from Hong Kong to pay a surprise visit to their friends in Japan, Sakura receives further encouragement to finally declare her feelings. However, she is repeatedly distracted by a presence reminiscent of a Clow Card as well as unexplained disappearances around town. Eventually, Sakura learns of another of Clow Reed's creations—the "Nothing"—which was formerly sealed away beneath the magician's old house. It has power equal to all 52 cards Sakura possesses, and furthermore, it wants to take those cards away from her! Objects, space, and people disappear from Tomoeda with each card that is stolen. Sakura sets out to capture the Nothing so everything will return to normal, but what must she sacrifice in the process? [Written by MAL Rewrite]

Despite their differences in position, three men—the youngest senior executive of the Port Mafia, Osamu Dazai; the lowest ranking member, Sakunosuke Oda; and the intelligence agent, Angou Sakaguchi—gather at the Lupin Bar at the end of the day to relax and take delight in the company of friends. However, one night, Ango disappears. A photograph taken at the bar is all that is left of the three together. Fast forward to the present, and Dazai is now a member of the Armed Detective Agency. The Guild, an American gifted organization, has entered the fray and is intent on taking the Agency's work permit. They must now divide their attention between the two groups, the Guild and the Port Mafia, who oppose their very existence. [Written by MAL Rewrite]