Awakened a Ten-Thousandfold Cashback Ability? Pledging My Loyalty to the Hehuan Sect

[Ding! The Ten-Thousandfold Cash-Back System is now bound.] Li Xunhuan transmigrates into the Hehuan Sect as a good-for-nothing alchemist with four spiritual roots, and a top-tier simp who's been wrapped around his green-tea junior sister's finger for two years. He thought he'd gotten the worst possible start, but then his System awakened… Give gifts to female cultivators and get ten thousand times the value back! Give one Qi-Gathering Pill, get a hundred back; give a spell, get an Earth-rank divine ability; give a magical artifact, get an immortal-grade treasure! Others cultivate through hard work. He cultivates by spending money on girls. The more a female cultivator falls for him, the bigger the payoff. So while everyone waited for him to keep acting like a simp… When his green-tea junior sister called him poor, he turned around and gave a top-grade magical artifact to her nemesis. When his fiery junior sister sweetly called him senior brother, he immediately arranged an Earth-rank cultivation manual, a top-grade magical artifact, and a life-saving immortal talisman. He could never hope to win over the aloof immortal maiden? No problem. He'd pay her mother's tuition first. He eats pills like candy, gives away top-grade magical artifacts without a second thought, and spends a million spirit stones without batting an eye. “Li Xunhuan is just a spendthrift simp!” Li Xunhuan only smiles. What do you know? I'm not simping. I'm boosting the System's performance stats.