This is a film about the growth of a girl with a strong personality. It tells about the girl's family changes and emotional maturity as she grows up. During the process of growing up, she also met a group of friends who made her willing to sacrifice everything, and experienced the emotional changes of adolescence with them. After separation, she used memories to support her and continue to work hard. She used strength to overcome the hardships in life, and she paid with her heart. With every emotion she felt, she used tears and laughter to prove her growth. She savored the sweetness and bitterness of memories, and experienced a painful and happy truth with her heart. She believed that the world was fair, and sometimes she would be serious and a little silly. There were also cute times. She was looking for her own little happiness, and she firmly believed that one day she would find the true happiness.