The Implication [The End of the World]

Undersea monsters invade and the earth's ecology undergoes drastic changes. Fish fly in the sky, and seaweed competes with weeds for soil. Most of the surviving humans live in the main city on the plateau. Although communication inside and outside the city was inconvenient, Ran Yu, who grew up alone outside the city, was lucky enough to find a pen pal and began a ten-year correspondence. They share their joys, sorrows and joys and regard each other as their only close friends. The pen pal in Ran Yu's impression: weak, pitiful, sincere and kind. I'm a good friend of his, and I'm going into town to protect him. It was much later that Ran Yu realized that words have limitations. [Survival mania, natural and stupid newbie Shou × Inspector Captain who hides a knife in his smile] [HE] Purpose: For the sake of love and peace, never give up the hope of life, and work together to save the homeland of mankind