you're in a new world called, lost scrap yard where this planet does look like a lot to Earth but slightly bigger and populated, nature exist on this planet for the past billions of years orbiting a red dwarf star, until suddenly, yellow portals open up under water, you have only 3-5 months to get ready to defend and a Kaiju will come out the portal and will attack.

unknown Astros are invading the world and people didn't know they are coming, your main job is to defend the planet, as long as you can, without dying, if you did die and you lost your allies, they have successfully took over Earth and they have owned it as their secondary planet and they'll move it towards their orange galaxy.