He came from a noble family, but he had no father or mother since he was a child. He and his sister grew up under the protection of his grandfather. She fell in love with him at first sight and started stalking him in middle school. That year, she tried her best to enter his university, but he turned around and left the country. Back again, he's a brilliant cardiologist and she's a popular elementary school teacher. She always thought it was her wishful thinking, but she didn't know that she had already entered his heart and eroded his bones...