430-year-old Hanno Tomoko, or Panko for short, is troubled by her inability to voice her true feelings--whether it's at work or in private. Ever since she and Ryouhei, the kind-hearted delinquent, first kissed they've been spending more time together, but...does that mean they're dating? Yamamoto, a colleague that previously asked Panko out on a date, wonders if "that delinquent" is just taking advantage of her, bringing up the last thing she wants to hear from him at that moment.