Tai is now a university student, living alone, working hard at school, and working every day, but with his future still undecided. Meanwhile, Matt and others continue to work on Digimon incidents and activities that help people with their partner Digimon. When an unprecedented phenomenon occurs, the DigiDestined discover that when they grow up, their relationship with their partner Digimon will come closer to an end. As a countdown timer activates on the Digivice, they realize that the more they fight with their partner Digimon, the faster their bond breaks. Will they fight for others and lose their partner? The time to choose and decide is approaching fast. There is a short time before “chosen children” will become adults. This is the last adventure of Tai and Agumon.
Although traumatized by witnessing the murder of his parents by one of the Choushuu, Ichimura Tetsunosuke's thirst for revenge leads him to desire strength. At the age of 15, Tetsunosuke approached the Shinsengumi, wanting to become one of its members. However, Tetsunosuke lacked the skill, mind, and will to emotionlessly cut down whoever threatened peace and the Shinsengumi. Even with the support of his brother Tatsunosuke and his newfound friends of the Shinsengumi, little did Tetsunosuke know the blood and pain he would have to face being part of this historical group.
Meicoomon rampages after witnessing Meiko Mochizuki being injured by the man bearing Gennai's likeness. "It would have been better if you hadn't been born..." Meicoomon disappears into the Real World, which has since become distorted. Possessing overwhelming power, she's the key to the world's destruction.
Ciel learns of a "Aurora Society", that is rumored to be researching how to bring the dead back to life. Their next meeting is scheduled to be conducted on the ship Campania, voyaging across the Atlantic Ocean. Much to Ciel's dismay, Elizabeth "Lizzy" Midford, is taking the same ship, thus leaving him with no choice but to get aboard as well.
A young girl had her voice magically taken away so that she would never hurt people with it, but her outlook changes when she encounters music and friendship. Will Naruse be able to convey the anthem of her heart?
Zephyr, now known as Z, rides the seas with only one goal: Destroy all pirates and their dreams at becoming King of Pirates. When Luffy and his crew encounter him at sea, not only are they utterly defeated by the man with an arm made of Seastone, Nami, Robin, and Chopper are turned 10 years younger due to Z's minion Ain. Luffy is so determined to win against him that he does not even notice Z's master plan that could sacrifice thousands of lives.
