Ben 10 X Mushoku Tensei crossover story. A variant of No-watch Ben got reincarnated in the world of Mushoku Tensei. This is a tale of Ben, now Matteo Greyrat) who searches for the meaning of his life as he tries to protect his loved ones.
Summoned as a non-combat class to Tortus, Ben Tennyson has set off on a journey to find the meaning of his life. As his life has been gradually shaped by the people around him, he holds onto his own beliefs and logic and proceeds his journey with the otherworldly abilities, to find the truth of Tortus.
A Comedy/action crossover story featuring Ben Tennyson as an underground hero in Saitama's world. Comedic events happen around our protagonist as he struggles to mind his own business and achieve peace and quiet. Following his own ideals, will he be able to pull it off as a hero, too?
The Story about Ben Tennyson, the Omnitrix Wielder, being summoned to the world of the "Rising of the Shield Hero" with Ben as the Shield Hero. Diverged from the original storyline at a point. After Ben has saved his own universe several times, will he successfully save this world, too? (Ben Tennyson after the events of "New Dawn", with a complete Omnitrix.)
Tribute to the Legendary Superheroes – Ben 10 and Kamen Riders. Due to a certain God's mistakes, the anime universes and Kamen Rider Multiverse have been fused together. Ben Tennyson, the Wielder of Omnitrix, has set off on a multiversal journey to save the multiverse in question from inter-dimensional threats.
The tale of Ben Tennyson who gets reincarnated into a fantasy world. A lazy and unmotivated Ben died a young death and got reincarnated as the son of a duke in a Fantasy World. After regaining the memories from his past life and the Omnitrix, Ben finds himself in chaotic situations as he struggles to live a peaceful and quiet life.
After three years of using Ultimatrix, the device went wild and leaked the DNA from Codon Stream into Ben's body, resulting in a serious mutation. But the new Omnitrix suppressed the mutation. In the fight with Eon, Ben was sent into Kamen Rider Build universe. Sento Kiryu built an Omni-belt for Ben. Ben Tennyson now began his journey as Kamen Rider OmniX to fight the evil!