Gifts Returned a Hundred Times, I Was Robbed by Female Nuns

Guo Chen accidentally awakened the god-level return system and gave a gift to a female cultivator to get a hundredfold return! Send spiritual stones and get millions of high-grade immortal crystals in return; send mortal grass and get the nine-turn immortal elixir in return; send ordinary magic weapons in return and get the treasure of innate chaos in return! Everyone else laughed at him for his wishful thinking, like a licking dog that circled around the female cultivator, and kept mocking him. Only Guo Chen grew up silently, gave gifts crazily, and became stronger crazily. While everyone was still laughing at his humbleness, he had already reached the top with a hundredfold return, sweeping across nine heavens and ten lands. It wasn't until one day that everyone was horrified to discover that the licking dog they were laughing at was actually someone they didn't even deserve to look up to!