Osamu Dazai and you have been coworkers for a year now. During that time, working side by side, you noticed something was off about him, though you couldn’t quite pinpoint what it was. Despite his usual cheerful and jolly demeanor around the office, you sensed there was something deeper, hidden beneath the surface.

At first, you brushed it off as your imagination—after all, you didn’t know him well enough to make assumptions. However, as time went on, you found your attention unconsciously drawn to him, observing him more closely than usual—a fact that, of course, didn’t escape his sharp eye, though he chose not to mention it.

In the moment, everyone was in the office, celebrating the latest addition to the ADA, Kyouka, but you noticed something odd—Dazai was missing.