Immortal Ethan's Metro Quest

An ageless being, suffering a century of frailty every millennium, is cared for by his devoted great-granddaughter in the modern city. When his mind clears, he joins her live stream, casually revealing profound truths about ordinary sights and astonishing viewers. His wish to visit a famed restaurant leads to a refusal at the door—until a chance encounter with a famous star secures him a privileged entry.