Airi, who started commuting by train due to her company's policy, has a past encounter with a molester that clouds her expression. However, she tells herself, 'I am no longer the person I was back then,' and renews her spirit as she boards the train. But as if mocking her, the molester relentlessly fondles and develops her sensitive areas. Though she continues to resist, Airi eventually finds herself swept away by the repeated lewd acts... Before long, she begins to find pleasure in being molested and starts to press her hips against him on her own accord. And today, she boards the commuter train once again, seeking that sensation of pleasure…
