Rotu-4 is one of Xamo’s creations in Epic Universe:Next Generations. Introduced in the start of season 3, he along with neitoru fought the heroes at the start of season 3. Later in the season though, the heroes trick him to join their team. Rotu-4 dies to Jupitiais in the s3 finale, but returns in the mega void war.
Rotu-4 definitely has the strongest ultra rage out of all of xamo’s creations. In s3, his deity level can get to 20, the cast pointed out the fact he was stronger the Universia’s final form (multiversia), and when Viaton absorbed his power and used it, he was sent to universe 6.