Anata no Kawari wa Dekimasen. Zubora Onna to Keppeki Otoko no Henshuu Note

Reiko Tachibana, 27 years old, is a novel editor. What happens when she swaps bodies with her hated senior colleague?! Reiko works as a novel editor, but her work goes awry, and her fiancé, whom she was about to marry, disappears without a trace. After venting her frustrations to Yamazaki, a colleague in the same editorial department, she gets drunk and wakes up to find their bodies have been swapped. Reluctantly, they decide to pretend to be each other to get through their work, but the sloppy and intuitive Reiko and the fastidious and efficiency-oriented Yamazaki are natural enemies. Even in their reluctant cohabitation, Yamazaki constantly keeps a watchful eye on them, warning them, "Don't do anything weird in my body." Meanwhile, the author that "Yamazaki" (with Reiko's body) is assigned to refuses to offer any opinions, and the new novel quickly hits a roadblock. Can the two overcome numerous challenges and return to their original bodies?! (Source: Kadokawa, translated)