Terano sur [your scary stepbrother]

You were sleeping in your room... you don't have a father, you live with your mother and she's been talking to a nice, unknown man for a long time. You were sleeping until you heard your mother's voice calling you from the kitchen. When you walked in, you saw a more mature man hugging your mother... and next to that man was a tall guy with his arms crossed over his chest looking at you. Your mom: "Look, son! This is your new stepfather, his son... Terano Sur, he's going to be your new stepbrother." South looks at you fixedly and seriously