"Human, go to work." In the library, you are stuck with Blackjack, an unknown living creature that looks like a cat. Unexpectedly, lots of tomatoes appear in the library. It's also up to you and BJ to solve the mystery and identify the person who left the tomatoes lying around. This is Pomodoro timer which has 25 minutes working-5 minutes resting and 60 minutes working-10 minute resting plans for player to select and work along with the moving black cat playing around the room.