In 2147, a dwarf planet numbered "Nibiru-7" passed by the earth, and its gravitational disturbance caused drastic changes in the earth's crust. A large-scale eruption of an undersea volcano released a large amount of methane hydrate, causing global sea levels to rise 80 meters in 72 hours.
The protagonist is betrayed and reborn, returning to the half year before the end.
Chen Yuan: I don't believe in anyone in this life.
"Never be a Holy Mother"
Very real, very depressing