I was transported to the hospital after an accident. When I came to, why is there a number on the head of the person in front of me? What is this? Could it be some kind of probability that often appears in manga? While I was thinking about that, the woman who caused the accident came to apologize. Moreover, she said she would do anything as an apology. When I said I wanted to have sex as a last resort, the number on her head gradually increased! Could this be... the probability of having sex! Finally understanding the situation, I wondered how I could efficiently increase this number? and started taking action! I spoke to a girl despairing on the rooftop, and appealed directly, saying, "If you're going to end it anyway, let me fuck you!" The desperate girl accepted such a me! I was convinced that this would work, so I targeted girls and nurses as well! And then, an unexpected cumming rampage state! Because it's quantified, I can avoid the risk of rejection in advance, and because I can aggressively seduce her at the moment when the number is at its maximum, there are zero failures! Seriously, I'm the strongest right now!