People Are in Fantasy, Starting Their Retirement Life at the Age of 18

Traveling through the fantasy world, Jian Chen became the second son of the Jian family, and also activated the only god-level system. I raised a chicken, but who knew it was actually an ancient Chongming bird that had acquired the divine magic - the Suzaku Magic! Raising a fish, who would have known that he was actually the only son of Zhen Sifang Sea, and had acquired a god-level skill - the Martial Arts Sky Eye! I raised a rhinoceros, but who knew it was actually the reincarnation of the Thunder Beast, and obtained the divine treasure - the Thunder Armor! .... Planting flowers, cooking, raising fish, herding cattle, growing vegetables... Everything was originally the retirement life of a 70-year-old man. Who knew that he would start his retirement life at the age of 18! I originally thought that he traveled across time to start a new life, but no matter what he did, the system would reward him with things or treasures beyond the knowledge of this world. Can this still be fun? Along the way, he also made many confidantes... Jian Chen was also puzzled all the way, I will support others in their old age if they become immortals, I will support them in their old age if others marry, and I will support them in their old age if others become gods... An 18-year-old boy lives a 70-year-old life ahead of schedule... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.