Yunyun, light of my life, fire of my loins. My sin, my soul. Y-U-N-Y-U-N: the tip of the tongue taking a trip of three steps down the palate to tap, at three, on the teeth. Yun. Yun. She was Yunyun, plain Yunyun, in the morning, standing five foot four in one sock. She was Aqua in slacks. She was Darkness at school. She was Megumin on the dotted line. But in my arms she was always Yunyun.