He and she had been in love since childhood, but when a third person appeared in the supposedly beautiful love, their love was shaky, panic, fear, and haze always shrouded her. Until another sunshine boy appeared, her worries and fears were all seen. She finally didn't have to bear the endless pain alone, but she couldn't let him go. She tried her best just to be with him, but what she got was the pain that she couldn't let go of for the rest of her life...