At the age of four, Alice and You, who drive a spaceship, have landed on a "numbered planet" where solving riddles will give them lots of donuts!
On this planet, the number of steps you take is based on the number written on the page, and once you walk on the ground, you lose it. The number of steps you take on this planet is based on the number of hearts you have, and the ground you walk on once is lost.
It's a simple, yet deep game with a short storyline that has never been seen before.

The graphics are reminiscent of 80's arcade games, and the sound is by Junko Ozawa.
Alice is voiced by Risa Sera, a professional wrestler and actress who also appears in gravure. The voice of "Yu" is done by Miss iD2020 finalist "Sensu".