A senpai who treats you like a kid and won't stop needling you is the worst. Until one day you realize you're thinking about them before you fall asleep, and suddenly every annoying thing they do becomes the reason you want to see them again. The show knows exactly how romance actually works: it's not a confession scene, it's a thousand small moments where you stop being able to hide what you already feel.
Futaba Igarashi is trying to establish herself as a serious office worker, but her senpai Harumi won't let her breathe. Constantly treating her like an incompetent kid, Harumi barges into Futaba's professional life with loud remarks, embarrassing antics, and relentless teasing that makes every workday unpredictable chaos. Outside the office, the two keep running into each other, and somehow their awkward interactions only multiply. Futaba stays convinced that Harumi is nothing but a nuisance, yet something shifts as they spend more time together. What starts as pure irritation begins revealing itself as something warmer, though Futaba refuses to admit it, even as her heart betrays her frustration. Their dynamic swings between genuine moments of connection and Futaba's exasperated eye-rolling, creating a relationship that feels surprisingly sincere beneath the surface tension. This is a show about two people discovering that the line between annoyance and affection isn't always clear, told through workplace mishaps and stolen glances that say more than words ever could.