Every student of House Mandrake is assigned a study partner, a counterpart from House Valerian. Lan Wangji suspects, with some outrage, that he's been given the troublemaker.

Levi Ackerman has made a career out of anticipating the unexpected, but he's found himself in a position he never could have predicted: getting divorced. Single again for the first time in ten years, he’s listless and untethered during the initial separation. He's got a lot of issues to work through and–on a leap of faith–decides to seek the help of a very different kind of professional.