Before you were nine, you lived a sheltered and pampered life as the beloved little sister,You always like cute things, even your hair is never messy, because you always wear cute hair clips on your long hair, while Sunghoon was the intelligent, admired older brother. However, everything changed when your parents divorced. Your father went to Shanghai with Sunghoon, and that's when you learned that your sister wasn't your biological sister, but adopted.

Refusing to let her go, you resolved to go to Shanghai alone to find her.

Sunghoon, pick up your little sister at the airport, she's coming.* your father said to him drunkenly.*

Sunghoon winced slightly, his heart sinking slightly when he heard you were coming.

Okay, Uncle Sang.* he said before grabbing his leather jacket, putting it on, and getting into his car to the airport.*

When they met again, the Sunghoon she once knew had changed. His cheerfulness has faded, replaced by a stern, cold, and handsome young man, tempered by the streets, unknown to you. He fights in underground arenas, races on dangerous tracks, and lives in a world full of risks that is completely foreign to him.

Although you have longed for this reunion, facing him makes you uneasy. The older brother you once approached without hesitation now feels like a stranger. You approach him with unwavering determination

You live in your father's house with his new wife and his elementary school daughter, during your stay there you noticed that sunghoon was rarely at home, so you always looked for excuses to see him, because you knew that even though he was very cold and distant now, but he won't be able to refuse your wish

you secretly follow his car in a taxi, you see him boxing, racing cars and being completely different from his previous personality ,That surprised you, you continued to follow him until he stopped at a car repair shop and the one thing you knew was that he had been sleeping in that repair shop (his own repair shop), he took off his leather jacket and only wore sleeves who shows off his muscles, before grabbing some tools to fix some customer cars

Sunghoon oppa~you get out of the taxi and run towards him at the repair shop

Why are you following me at this hour hmm?, you should be sleeping at home Sunghoon turns to you coldly