Don't panic when the end of the world comes, the boss of the group has a system

(Group pet, family and country, light fantasy, invincible, no CP, multiple male protagonists) The "heart of the world" in the Kyushu world is unstable, and the end of the world is coming. In the 18th year of Tianwu in Dongchu, natural disasters occurred frequently across the country, the treasury was empty, and the income was not enough to make ends meet. The three surrounding big countries were eyeing and ready to move. Dongchu, which was already in crisis from both inside and outside, also had an unknown force in the rivers and lakes. This force secretly trained its troops and stored food, making the already riddled Dongchu even worse and in danger. Lin Baoer, who died of world-weariness in the 21st century, traveled to Dongchu in the Kyushu world with a golden finger and became the Lin family of Linjia Village...