Living modestly and inconspicuously, Baaljebub works as a low-ranking civil servant in the demon realm. With no ambition for promotion, he finds joy in living each day at a comfortable pace. However, his peaceful life by the window is suddenly disrupted when he is unexpectedly appointed as the Minister of Agriculture due to the antics of the newly inaugurated Demon King. "Please work hard, Onee-chan♥" Baaljebub's chaotic work life, which he can't simply blame on the Demon King, begins.