While Others Cultivate, I Use My Unique RPG Leveling System to Cultivate Smut Romance With Their Girlfriends!

Did I reincarnate? Or was I transported to an Isekai cultivation world? To be honest, I have no clue! What matters is that I turned from being useless, bullied, and trash, to fully-fledged garbage in my new cultivation world! But what is this strange bleep that keeps ringing in my ears? Is this some kind of system? Oh God! Did you gift me such a cliché, right at the start of my journey? Wait, why are you trying to kill me? Did I do something to you? Stand back or I will be forced to use unstoppable Exhudia! Tell me, what did she do for you to treat your significant other in this way? Let me show you how girlfriends should be taken care of! Wait, everyone was always telling me that demons are bad, so why is this demonic queen trying to seduce me? Wait! KEEP YOUR HANDS AWAY FROM MY PRECIOUS SWORD! I just came back from a mission and was promised at least a half a year of break. Why are you bothering me again with something as silly as subjugating a devil general?