[Infrastructure] [National Destiny] [Growing Female Protagonist] In the year 2500, the global ecological balance collapsed, the earth was barren, animals died in droves, the scorching sun burned everything, technology regressed a century, and humanity retreated underground to survive. [Ding! The interstellar survival game has arrived, please strive to survive.] Su Jin, a koi spirit, was selected as Dragon Nation's contestant #001, and good luck befell her. [Ding! World Announcement: Congratulations to Dragon Nation's contestant #001 for being the first to upgrade to a Level 3 Stone House. Personal reward: 10 distributable attribute points, and national reward: 50 million tons of grain.] "Huh? Are you still living in a wooden house?" While the other contestants munched on bread, she held a roast chicken in her left hand, a cake in her right, and a table filled with fruit. Lying on a large leather sofa, the little koi said lazily, "I'll reluctantly sell you some seasoning." (My introduction is incompetent, please give me a chance to move on to the main text♥) Protagonist: Su Jin