Returning to the Digital World, Taiki and Shoutmon learn that the Bagra Army has taken it over and reformatted the world to have Seven Kingdoms, each ruled by a general. (Source: AniDB)

Digimon Xros Wars: Toki wo Kakeru Shounen Hunter-tachi takes place one year after the defeat of Bagramon and company. Since then, Taiki Kudou and Yuu Amano have formed a basketball team with Yuu’s classmate, Tagiru Akashi. One day, Tagiru discovers a strange area called the DigiQuartz, a strange and unstable realm that exists between the human and digital worlds. He then realises that children all over the world have obtained Xros Loaders as well as Digimon partners to participate in a competition called the 'Digimon Hunt'. Digimon that wander from the digital world into the DigiQuartz are able to feed off of what negative emotions leak in from the human world. This makes the Digimon stronger at the expense of being extremely violent. As a result, the Digimon Hunters must work to stop these Digimon from wreaking havoc in the human world. Joined by the troublemaking Gumdramon, Tagiru aims to become the top Digimon Hunter, all the while unaware of Taiki and Yuu’s previous Digimon connections. Yet a sinister force lurks with the creation of the DigiQuartz, and the young Hunters will soon realize that the Digimon Hunt is much more than a simple game...

Everyone in the world uses smartphone apps. But inside them lurks unknown creatures called "Appli Monsters," or "Appmon." The Appmon are AI lifeforms with the ability to think and act, and exist in the boundary between the human world and digital space. In the vast sea of the internet, the "last boss AI" Leviathan takes control of the Appmon with a virus and begins hacking every system, thus starting to control the human world from the world of the net. Haru Shinkai is led to acquire the Appli Drive, and uses it to materialize Gatchmon, a search app monster. (Source: ANN)

Forming a party with one's mother in an online game seems not only unlikely but also uncomfortable to most teenage gamers. Unfortunately, Masato Oosuki finds himself in that exact scenario. After completing a seemingly meaningless survey, he is thrown into the world of a fantasy MMORPG—and his mother Mamako actually tagged along with him! On top of all of that, Mamako turns out to be an overpowered swordswoman, possessing the power of two-hit multi-target attacks! After minor tension between the two, they search for party members, meeting the merchant Porta and the sage Wise, starting their journey to clear the game. [Written by MAL Rewrite]