Lin Shiyu, a girl who bravely pursues love, from the age of 16 to 30. Her love may be as gorgeous as summer flowers, or as quiet and beautiful as autumn leaves. Zhang Yutao is a mature and steady man. He used his humble love to create a bright future for a girl. They share a common love for the Coral Sea. They had agreed to walk along the Coral Sea together. She said she hated the lyrics to "Coral Sea." He smiled and promised that it would never be like the lyrics. Perhaps love can only last forever if it is broken. Finally, with a broken heart, she boarded a flight to Moscow alone...