The backbone of the Sonic Expanded Universe which take most percentage of characters and species is the Ben 10 franchise I incorporate which is also deeply important in my stories. My OC Cinos, whre is is supposed to be like a Sonic character, he have more ties with Ben 10 due to his connection to the alien species Loboans & Vilpimancers, the Omnitrix, Malware, & Azmuth himself.

Many elements of the Ben 10 from the original series, Alien Force, Ultimate Alien, Omniverse, the reboot, Race Against Time, Alien Swarm, Destroy All Aliens, and many video games like Protector of Earth, Cosmic Destruction, Power Trip, etc. Planets, species of aliens, many humans, etc are primarily are there. Sadly the titular character only made mentioned by Max Tennyson, Gwen and Kevin are exist too but not really mentioned. Concept like various of Omnitrix created by Azmuth and/or other high intelligent being, intergalactic Plumbers, and the xenophobic Forever Knights are hidden on Earth.

Many historical and major events have deeply happen on Earth and within the stars: the Contumelia creating the universe with the slimebiotes spread to create life, the extinction of Omnivoracious, the birth of the Galvanic Mechamorph, the fall and death of Petropia, George Washington founded the Earth Plumbers, and most importantly Azmuth created Ascalon which cause lots of important thing like Zenith leave Azmuth, the destruction of Incursean Homeworld, the sword given to Sir George to defeat Dagon as he founded the Forever Knights, and the Omnitrix being created with the help of Myaxx, Albedo, & Vilgax who want it for himself and become a dangerous warlord.

Professor Paradox confirm that there are other universes that have a kid with the Omnitrix who used it to save the day and become a legend when he gets older.