Mikoto, an orphaned high school student, takes a shady part-time job collective human love from a mysterious man named Joka who calls himself the god of love.

"Simply put, you're a courier. Like a bee collecting nectar from flowers , from now on you will become a worker bee that collects human love."

And so Mikoto set out to collect as much love from others as possible, selling off the affection from others smitten with him to Joka. Yet, the more he sells, the more his relationships change in unpredictable ways.