Influenced by her biological father, the heroine has become self-reliant, but hides her negative emotions and makes herself appear cheerful and optimistic. It is only when the hero arrives that she realizes she does not have to hide her feelings. However, the hero's parents both died when he was young, and he has always carried a heavy burden in his heart. What neither of them knows is that they were each other's closest friends as children. Together, they face one difficulty after another and both get into university. They save one another, and eventually fall in love.
Theme: It's enough to be yourself.