The game is structured into days, with 100 energy points that can be invested into different activities.
The protagonist convinces her that she is his pet kitten, and that she should stay in the basement from now on.
He has a good friend called Ami, her best friend Kotomi,a crush on the popular girl Tomoko, an enemy called Ryuji, a lesbian teacher named Akira.
One day, after praying to God for a miracle that will make him more attractive, he is visited by a girl from the future.
She fires a special DNA gun at him and goes back into the future.
Fortunately, the gun actually has the reverse effect; it gives the protagonist the ability to become the "megaplayboy" that the girl traveled back in time to stop.