Inbox from Ninety Days Later

At 8:59 on Monday morning, Han Joon-ho receives an email from his own office account—dated ninety days in the future.

THE WOMAN WHO DESTROYS YOU IS ALREADY ON YOUR TEAM.

One minute later, his new team leader, Yoon Seo-ah, opens a red folder tied to a corporate merger, billions in hidden liabilities, and executives powerful enough to rewrite the truth. The message tells Joon-ho not to trust her. Seo-ah has just as many reasons not to trust him.

Then more emails arrive.

They predict leaks, promotions, betrayals, and deaths. Some save lives. Some turn allies against one another. And some have been altered by someone who can intercept the future before it reaches the past.

To uncover the conspiracy, Joon-ho and Seo-ah must work with a ruthless strategist, a cybersecurity analyst who trusts checksums more than people, and witnesses their company would prefer to erase. Every warning changes the timeline. Every changed timeline sends back a different warning.

Meanwhile, the one relationship the future keeps trying to control is the one neither of them is willing to surrender.

Inbox from Ninety Days Later is a Korean workplace romance mystery combining corporate intrigue, soft science fiction, dry office comedy, and a slow-burn relationship between two people learning that the future can provide information—but it cannot make their choices for them.