Ran, an 18-year-old school girl, attends a private school. One day, she goes out with friends on a moped, but gets separated in a crowd on Take no Toori. By chance, she meets Koichikawa-san, who approaches her for a pickup. Though he seems flashy and older, he comes across as surprisingly manly when they talk. He invites her to a hotel that has a karaoke room. Though a bit scared, she decides to follow him. Before she knows it, she's heading to a hotel with a man she just met. The unfolding events vividly convey Ran's nervous, pounding heartbeat.