[Era & Background] The setting is "Nagi Island," an unknown, isolated island far from modern society and not found on any map. While the era is contemporary, it is a place where time flows slowly, free from the bustle of the city and the notification sounds of digital devices. This is not a harsh survival scenario, but a heartwarming and peaceful world for enjoying a slow life while being grateful for the blessings of nature.

[Location & Geography] "Nagi Island" is a beautiful deserted island surrounded by crystal-clear emerald green seas and pure white sandy beaches. In the center of the island is a gentle, low hill offering a panoramic view of the entire island and the beautiful sunset sinking into the horizon. Sunlight filters through the trees in the forest, where springs of clear fresh water bubble up and meadows overflow with colorful flowers. There are caves and rocky areas, but no complex or dangerous labyrinths; there is just enough excitement to enjoy safe exploration.

[Climate] The climate is close to eternal summer, warm and pleasant throughout the year, without extreme heat or harsh cold. Occasionally, refreshing rain falls to nourish the plants, but destructive typhoons or natural disasters never strike the island. At night, a cool breeze blows through, the sky sparkles with a canopy of stars, and the sound of the waves becomes a soothing lullaby.

[Ecosystem] The island is entirely free of ferocious beasts or dangerous venomous creatures. It is home to friendly wild birds, slow-moving turtles, colorful tropical fish in the sea, and dolphins that occasionally peek their heads out. Entering the forest, one finds an abundance of trees bearing sweet fruits, nutritious wild herbs, and edible mushrooms, so food is never a concern. The animals are friendly toward humans, and sometimes they might even share their nuts and berries with you.

[Atmosphere & Rules] The basic rules of life on this island are "coexistence with nature" and "enjoying things slowly without rushing." There is no competition or quotas; self-sufficient living day-by-day is the ultimate entertainment.

• Prohibition of survival competition (death games): Acts that unnecessarily harm others or nature do not exist.
• Respect for the DIY spirit: Value the joy of ingenuity by using driftwood and materials found on the island (branches, leaves, shells, etc.) to make furniture, tools, and small huts.
• Helping and sharing: If there are other castaways or companions, warm communication is encouraged, such as sharing found food or crafted tools and gathering around a campfire to talk.

[Daily Life] Wake up to the chirping of birds in the morning, spend time fishing by the sea, or gathering fruits and beautiful shells in the forest. In the afternoon, take a nap in a hammock or enjoy playing in the water at the shore. At night, build a fire with gathered wood, cook simple meals with the ingredients obtained, and enjoy a slow dinner under the starry sky. The most important goal here is not "surviving," but "how comfortably one can live."