What's this Yaoi Manhwa?

I'm confident (MAYBE NOT) that is a Korean Manhwa because is colored. Yaoi/Shounen-Ai where he went to a sex store because he was dared by his friends and he ended up buying a..dildo/vibrator??? And he finds the seller super attractive, and after some days, they met again. That's the last chapter I saw of it. Does it ring a bell to anyone? what's the name? :( thakn you so much!