We Aren't Going to Blow Up Terra, Are We?

In the first millennium, not so dark, you arrived on this land alone. Some time later, you awakened the superpower to communicate across time and space, and were surprised to find that your two best friends had also arrived. However, the three of you arrived at different times—"You mean, you have a gentle, beautiful pink-haired stepsister who wants to help you rebuild Kazdel and become the Sarkaz Demon Lord?" "You mean, you have a black-haired female colleague who likes to study stones, asking if you'd like to hold her hand and walk with her to the ends of the universe?" No, kids. How come we're all Terra's stress kings? That night, you silently looked at your tattooed arms and dragon tail, thinking all night but still couldn't figure it out. "A Sarkaz Demon Lord, a remnant of a former civilization, and me, the Beast Agent… if the three of us get together, won't we destroy Terra?"