"Sunny Summer" (여름여름해) by GFriend is a refreshing and upbeat summer song that encapsulates the feeling of joy and adventure during the summer season. The lyrics portray a couple enjoying a summer night, contemplating where to go and confessing their love for each other. The song starts with the members questioning where they should go on this particular night, expressing their desire to make a confession in that very moment. They describe the exhilarating feeling of summer making them want to explore new places together. Throughout the song, the lyrics highlight the contrast between the hot weather and the cold loneliness felt by Yerin, one of the GFriend members. The abundance of couples around them during the summer season makes her feel even lonelier. The chorus repeats the phrase "Sunny Summer" and emphasizes the desire to have a good time and enjoy the night together. It suggests that they can have a good time if they are with each other. The bridge adds a sense of romanticism by referencing a shooting star. The members feel a sense of excitement and anticipation, asking the shooting stars to grant their wish. This part symbolizes the heightened emotions and romantic moments that occur during summer nights. Overall, "Sunny Summer" conveys the carefree and joyful vibe of summer, capturing the essence of love and adventure that comes with this season.