The words 'Level 0' appeared in the vision of me, an unremarkable high school student. If I see a girl's panties in front of me, my level fluctuates! Could it be... that I can level up through perverted experiences?! Furthermore, with continuous lucky pervert events, my skills keep rising! The girls in my class who used to think I was creepy are now all over me! I can do it! I can go all out! What the hell is this? The only thing I know for sure is that I'm invincible now! I've ranked up to the top-tier guy. Lost virginity → raw sex → creampie → harem orgy! In a short period, my sex level has skyrocketed to cheat levels and entered an unstoppable state! Now I surpass the school's popular guys in both physical strength and sex skills. Women come to me without any effort on my part! If I level up any more...
