The Immortal Caretaker of the Apocalypse

Waking up inside a sealed stasis-pod orbiting the shattered moon, Tashin plunges back down to an Earth fractured by the Abyssal Maw. The world is now a frozen, demon-infested wasteland, but Tashin isn't fighting alone. He is greeted by Khandro, a ghostly assassin who can phase through solid walls - and who claims Tashin's past self arranged everything. Though Tashin has no memories, he possesses a terrifying power: he can revive defeated apocalyptic bosses as fiercely loyal pets. Better yet, any damage Tashin takes is instantly transferred to his undead, making him functionally immortal. Armed with a gentle smile and quiet ruthlessness, Tashin traverses the ruins, brewing tea for weary survivors while his ever-growing horde effortlessly slaughters demons. When he defeats a colossal Abyssal Titan, he resurrects it into a walking fortress to safely shelter humanity's remnants. But as he loots the ultimate world-ending bosses, the breadcrumbs left by his past self reveal a chilling truth. Why did the old Tashin erase his own memories, and did he orchestrate the very apocalypse they are now trying to survive?