Reborn Extra: Mastering Beast Taming with Mecha
Joseph, someone whose profession was founded on escaping the reality of life by choosing the path of a gamer, had a brother who, through an accident, was declared brain-dead. Finally, after reaching the end of the same game that had led to his brother's accident, he found a clue to the reason for such an event.
However, it appeared as though reality was still far more real than fantasy, directly throwing him into a situation where he received a bullet to the head on the same day his brother was finally declared dead.
In his last moments, as his world crumbled, he realized that the betrayal had come from someone very close to him.
With nothing but emptiness, he ensured that he killed that traitor before he died regrettably.
But the next moment, he found himself in the same game world, where a universe once ruled by mecha had now been replaced with beast taming by the same alien Excovian Race, which sought to prevent humans from growing and posing a threat by offering a distraction.
Having already played the game to the end and developed exoskeletons and mechas, Joseph chose the path of defeating the Excovian race, which held a technological advantage, by merging mecha and beast taming and creating a new era where beast tamers would be in mecha while taming beasts wearing exoskeleton armor.