The Seto 50 (セト-50 Seto Gojyuu) is a super megaton missile developed by Omega Dain in the Danball Senki universe.
Background[]
Originally setup for Paradise, it was developed in a secret manufacturing facility underneath Camberlin's aquarium, and guarded by a slave-minded Asuka Kojou by Omega Dain. The manufacturing was halted when NICS infiltrated guided by Professor Yamano's "directions" through the Australia brainjacking., and the missile was confiscated by the Australian government.
In the Mizel chapter, it was stolen by Mizel with the Mizel Trouzer.
Mizel summoned a digital copy into the cyberworld when people from across the world sent their LBX data and schemeatics in order to help Tiny Orbit defeat it. With Vector, Sigma Orbis, Ifreet, Dark Pandora, and Zenon as a defense, Mizel attempted to use the Steo-50 to blow up the data, but was thwarted due to the efforts of Ban Yamano, Jin Kaidou, and Hiro Oozora defeating all of the virtual LBX and preventing the bomb from going off.