Hey sorry again.. but can you help me find a shounen ai where the plot is about a boy who ...

Hey sorry again.. but can you help me find a shounen ai where the plot is about a boy who returned to japan to live with his dad and foubd out that inside the house there is a boy who he tought as his brother but he is actually a half cat . Ah.. the latest chapter I read is when his brother a model were shot by a half dog and still unconscious and he iss sooo worried and sad. Thank you