After being harshly rejected by my crush, I fell down the stairs in despair and lost consciousness. But when I regained my senses, I saw numbers and percentages floating above everyone's heads! What the heck are those numbers? I desperately tried to figure out their meaning, and it turned out to be the "probability of getting laid"! I discovered that some unexpected girls actually want me! Now that I know this, I'm invincible. I'll go for the girls with the highest chances, and easily enter a world of effortless sex! Love and romance are no longer necessary!