The Fox gets the shock of his life

In Chu Yun's mind the image of his brother as a sticky child, with chubby cheeks and grasping arms who clung to him wherever he went was so clear as to be almost sharp. He could still hear Chu Hean call him 'gege' in a childish voice, and then more self-consciously, as he grew up.

Chu Yun never treated him with anything but utter affection and patience. He made sure to include Chu Hean in everything, at an age other children wouldn't have been bothered to drag around a younger brother. Especially an omega younger brother, who his parents constantly reminded him was more fragile than him, and who he couldn't roughhouse with. 

But to Chu Yun the only thing that mattered was enjoying Chu Hean's company, seeing the world through his innocent eyes. And even though there were only four years of difference between them, he had always felt a keen sense of responsibility over him.