Who had the pyrrhic victory in my father sun sun Johnson?

Well, darling, in "My Father Sun-Sun Johnson," the main character, Sun-Sun, is the one who experiences a Pyrrhic victory. He may have won the battle against his rival, but it came at a great cost, leaving him with little to show for his triumph. So, technically speaking, Sun-Sun is the one with the Pyrrhic victory in that story. Hope that clears things up for you, sugar!