'Super Robot Wars Z II: Reborn the World' (第２次スーパーロボット大戦Z 再世篇 Dai-2-Ji Sūpā Robotto Taisen Z Saisei-hen, lit. "2nd Super Robot Wars Z: Regeneration Chapter", alternatively "Reincarnation Chapter" or "Second World Chapter") is a game from the Super Robot Wars series released for PlayStation Portable on April 5, 2012. The game is the second part of Super Robot Wars Z II, the first being Super Robot Wars Z II (Hakai-hen), and they are the sequel of Super Robot Wars Z.
Many worlds, many cosmoses... so-called "parallel worlds" which should never have interacted. Nor did they... until that day.
The "Great Spacetime Quake" began in one of the worlds, demolishing the dimensional walls that kept all the worlds separate. The result was the commingling of those worlds, and the birth of many new ones to form the Multidimensional World.
With this new world came new meetings, and those new meetings begat new wars. The newly-formed Multidimensional World was gripped by chaos well after its founding, only at length settling into several new orders.
Our story unfolds on one of the countless Earths in the Multidimensional World. This Earth, with two moons and two Japanese island chains, has finally attained order two decades after its creation. From its surface, orbital elevators stretch into space to meet an orbital ring, while clusters of space colonies grow at the Lagrange points. This is not a world at peace...