Zuo Xiaoya was originally an ordinary high school student, but due to the mysterious disappearance of her brother, she transferred to Yeyang High School. She met Miyalihara, and the two confusedly discussed pretending to be a "couple", but they ended up actually doing it during the vacation. While enjoying the time with him, she silently investigated Zuo Sheng's news. She didn't know that all her pain, laughter, disappointment and efforts were seen in his eyes and hurt in his heart. However, for the sake of the truth and to prevent her from being harmed, he could only pretend to know nothing, but he didn't know, perhaps, how much she wanted to share the thrilling adventure with them and explore together to seek the light in the darkness. Friendship, family, love, conspiracy, dark forces... When these are intertwined, what kind of joys and sorrows will be staged?