Two years after the battle against Eosmon, Davis Motomiya, Ken Ichijouji, Yolei Inoue, Cody Hida, T.K. Takaishi, and Kari Kamiya meet a boy named Rui Owada, who is found with a depowered Digivice and claims to be the first Digidestined ever. In addition, a Digimon named Ukkomon appears in the real world, who wants every person in the world to have their own Digimon partner.

8-year-old Hiyori, who lost her parents, and Yui, seeking to escape her violent father, got off at a Kitsunezaki station one day. The great earthquake and tsunami had changed their destinies. Their lives were saved, but they were perplexed when asked about their identities at an evacuation site. It was an old woman named Kiwa Yamana who lent them a helping hand. From that day, Yurie was known as Yui, Moeka as Hiyori, and together with Kiwa, the three women began a wonderful communal life together at the old house "Mayoiga" overlooking the sea.

Amsterdam, June 12, 1942. Anne celebrates her 13th birthday and begins her diary, which she calls "Kitty". Hiding for two years from the German threat, the young girl writes about her idealistic views on the world, her ambitions, her fears and her first love, Peter.

An untidy room. Empty beer tins, empty wine bottles, a half-empty glass of whisky... A girl is getting up absent-mindedly and starts preparing herself. YOUR morning starts. Lazy and hard-to-wake-up YOU. The emoticon is ME watching over YOU. I play tricks on YOU, while YOU are playing the guitar and drinking. One day, in town, YOU walk past THE CHILDHOOD FRIEND who is buying an Anemone I liked, and remembering that I liked them, YOU rush out to buy them. THE CHILDHOOD FRIEND displays the Anemone with care. One day, years after I died, YOU hear noise from the closet. Opened, YOU see MY garden right in front of YOU. Overflowing emotions of ME and YOU. When exiting from the room with memories, a picture of the Anemone that YOU painted is displayed in YOUR new room.