Adult PC Game: Under Cover Girl Ver.01.02 by PinkGold Archive

Crime in transport is at its peak.
In order to find out information and stop this madness, the girl Kobato Midori (known as the green-eyed Kobato) decided to work for a live bait.
Disguised as a schoolgirl and taking off her panties, she went straight to the perverts' lair to give them a beating.

Under Cover Girl Ver.01.02 by PinkGold Gameplay Preview