In a world where technology has conquered the boundaries of time, in a sleek where screens and data flows replaced ink and paper, 16-year-old Petra has just joined a delivery service in which the company defies the age of technology by delivering handwritten letters across time. In a time where tangible letters are relics, EchoLink is the only service that still values the touch of pen to paper, keeping alive the forgotten art of letters. These letters carry messages that can’t be answered, moments captured in ink and sent to give comfort, closure, or hope across eras.
As the company’s youngest courier Petra’s task is deceptively simple. Alongside her AI guide, K.K, whose snarky advice is as constant as the dangers they face, Petra learns to navigate both history and humanity.