âI have erectile dysfunction.â Not exactly the kind of confession Woo Hyeonsoo ever planned to make, but a few too many drinks later, his biggest secret slips out to his classmate Ha Jeongyoon. Mortified, Hyeonsoo braces for pity or laughter⌠but Jeongyoon just grins. âThen why donât we test it out? Who knows? Maybe I can fix you.â Wait, what?! Before Hyeonsoo can process whatâs happening, heâs suddenly part of Jeongyoonâs âscientific experiment.â What started as drunken honesty turns into a very hands-on test of chemistry, curiosity, and terrible decisions. Now, every accidental touch feels like a loaded dice roll. Will it be a total flop, or a nat 20? Caught between panic and possibility, Hyeonsoo wonders if maybe, just maybe, his biggest problem wasnât physical after allâŚBecause with Jeongyoon around, something else is definitely âârisingââ to the occasion.