Shattered Itinerary

Three months into their relationship, Mio receives a DM the night before her trip with Ren, the lover she believed was single. "Nice to meet you. I'm Ren's wife." Mio assumes it's a malicious prank. Yet the “wife” accurately predicts Ren's next message, the excuse he'll offer, and even promises that should be known only to the two of them.