An older man obsessed with marshmallows. A younger woman obsessed with him. The entire romance plays out in three-minute episodes where the joke is that he has no idea she's in love with him. Romance comedy usually demands dramatic misunderstandings and confession arcs stretched across seasons. This one trades that for something quieter: the pleasure of watching someone fall in love with another person's small, specific weirdness, knowing they'll probably never say it out loud. The marshmallows aren't a metaphor. He just really loves marshmallows, and that's the whole bit, and it's enough.

A middle-aged office worker has one great love: marshmallows, Tabekko brand above all. His 24-year-old colleague Iori Wakabayashi has fallen for him, won over by his soft, fluffy build, though her friends cannot see the appeal. She teases him endlessly with his favorite snack, eating it right in front of him, clearing out the convenience store's stock, even embarrassing him before their manager, all hoping he will realize she is trying to win him over romantically. He has no idea. Across twelve short episodes, this workplace romantic comedy follows their relationship as it slowly grows at the office.