Love or Destruction ( Fire Emblem X Godzilla)

Ok warning does contain cursing due from one of his heads are cursing and doing something evil and other things that are not for kids.. Ok here's the story.

Y/n the King of space and a three headed dragon of his two headed brothers were then sucked to another world. Y/n then plans to rule while his two headed brothers. It was then they needed a plan to rule and destroy this new world or will his two brothers just fall in love while Y/n had it for months.