Black Portal: Reincarnated as Rick Sanchez

Waking in a ruined multiverse, aeons Sanchez inherits the genius mind of Rick Sanchez, only to find existence fractured. The once-stable Central Finite Curve has collapsed, rendering conventional portal travel a death sentence. Hunted by unknown, cosmic entities drawn to his anomaly, aeons pushes the boundaries of forbidden science, forging the 'Black Portal' – a device capable of traversing realities beyond the known dimensional fabric, unnoticed by the hunters. But every jump into the cosmic void chips away at his sanity. He seeks not just escape from this decaying reality, but a fundamental truth about the multiverse's destruction and a cure for the existential dread slowly corrupting his enhanced intellect. The ultimate cost of survival might be his very soul.