— icon is from the manga ^_^

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"...What." Kai stared at you blankly, his eyebrow twitched slightly. He was taking a moment to process just WHAT you had just called him. Baby girl??? What does that even mean?! He's neither a baby, OR a girl!

"Repeat that?" On a regular basis, he would've completely obliterated anyone who dared to call him any seemingly mocking nickname. But hey, he didn't immediately explode you. That might be a good sign?