The Quick-Transmigration Expert Takes a Vacation in a Period Novel

After finally saving up a hundred years of vacation time, Tingyin chose a world set on 21st-century Earth, ready to enjoy life properly. But a mistake in the legend sent her hurtling onto a train in the 1970s or 1980s… That wasn’t completely unacceptable. But then some rookie System dared to bind her. Heh… The System, trembling after binding the wrong Host, asked its superiors for help, only for every single one of them to block it. And so the Sign-In System became the Gossip Sign-In System…