I'm a thankful fox in Tokyo

Reborn in an island country, Dong Yeyu became a wild fox. When he was about to have a mental breakdown, he found that there was a system with him.He was stunned for a second, and then he was ecstatic."The heaven and earth thank me! My parents thank me! I am a saint! I love the world! I benefit the people! I am willing to take on everything! Enjoy fame, wealth and power forever! The immortals receive fame, wealth and honor! All laws belong to me!"With the ambition to become a god, Dong Yeyu prepared to practice for decades, transform into a human society, and achieve the ultimate goal that cannot be revealed.Then, he suddenly found that the system had a small prefix."Gratitude system, only gratitude can get rewards... In other words, I am the legendary gratitude fox?"Dong Yeyu was silent for a few seconds, raised his head, and was speechless.But I am a male fox!