When thousands of players mysteriously transmigrate into another world, a brutal and immersive VRMMORPG called Abyss Code Online, chaos erupts in reality. Among the missing is Ayane, the top-ranked player who once saved Mikazuki Kyouya (Kyou) and gave his life meaning. With nothing left to lose, Kyou login and transmigrates into the game’s world, determined to find and save Ayane. No matter the cost, he will fight through the dangerous realms of Abyss Code Online, vowing to end the death game and even challenge the gods themselves to bring Ayane back.