A summary of season one of Tensei shitara Slime Datta Ken with some extra content leading into season two.

Once upon a time, when television broadcasting itself was an adventure. The invention of the television has made it possible to broadcast any event, however it is still an era where swords and sorcery abound. It has come for the cameras to turn their lens towards the darkness of dungeons, previously only known to adventurers. Fighting countless monsters and constant equipment problems, the camera-wielding adventurers continued on, hoping to broadcast the first live dungeon capture. What may await them ahead?

As demonic forces run rampant and heretical paths prevail, countless lives are plunged into misery. In this era of chaos, a mysterious stone descends upon the world, transforming into the enlightened Stone Monkey, burdened with the mission to save all living beings. Bound by the cycle of cause and effect, he must once again face his ancient foe. Will he defy fate and rewrite his destiny, or fall into darkness? This is the origin of Sun Wukong's rise as a legendary great demon.The soul of the ape is about to awaken.

Two hundred years ago, on the Battlefield of the Blue River, the last remaining army of the Empire of Light collapsed in the midst of demonic outcries. As the last Field Marshal and Emperor fell, the chaotic world of the Western River no longer had a common ruler. Factions were formed and endless conflicts ensued, military might became the only currency of survival, and the dream to reunite the lands became the sole goal of many rulers in the generations that came after. In the south-eastern part of the land, a powerful faction with over two hundred years of history – House Zichuan – fought off the Demons to the east, defended against the House Liufeng to the west, and contained the House Lin to the south. In order to accomplish their great ambitions and extend the bloodline of their family, countless heroes of Zichuan gave their lives in order to make this magnificent hymn come to life. This is a story about this legendary family and a hundred years of their blood and tears.