Habahiro Hige, a middle-aged man with a desk job, has an unwavering passion for Tabekko Marshmallows. His obsession amuses his colleague, Iori Wakabayashi, who frequently teases him by flaunting the brand and causing him embarrassment. Despite her friends' confusion, Iori is drawn to Habahiro's soft physique and goes to great lengths to gain his attention. Iori is using the tactic that the way to a man's heart is through his stomach, in the hopes of starting a romantic relationship with Habahiro. She dangles a bag of Tabekko Marshmallows in front of him daily, hoping he will catch on to her attempts. Will Habahiro eventually realize that Iori desires something even sweeter than marshmallows?