The illegitimate daughter who escaped from the orphanage, eighteen years later, slapped everyone who looked down upon her in the face. But she didn't know that starting from that silver hairpin on the rooftop when she was seventeen, someone had protected her from the wind and rain for eighteen years. When Bu Tie Zhou's biggest secret finally came to light, standing behind the wall was the boy who disappeared on the rooftop. She has never owed anyone anything in her life. I only owe him one sentence: I know you are here.