A brutal molestation incident involving a female college student. Two years later, Yui volunteers to become an undercover officer tasked with luring and catching molesters in the act to eradicate sexual harassment crimes. Despite resistance, her strong hatred for molesters drives her investigation forward. Meanwhile, she obtains information about a bus route targeted by a group of molesters. To dismantle the organization and break free from past traumas, Yui boards the bus. However, it turns out to be a 'bait bus' set up by the molestation group…
