"Adbus," a bus displaying ads for immediate decision and cash part-time jobs, roams the streets. Girls and couples wandering the streets with great interest board the bus, only to find the windows are magic mirrors, inviting them on the spot, "Would you like to try being an underwear monitor?" Girls, driven by the desire for a date fee, agree, leaving their boyfriends waiting outside the vehicle to complete a naughty mission! They even ended up having sex with someone else's penis.