Today, Kaoru is full of energy and is doing her homework for her summer vacation picture diary with Arisu. However, there are so many things she likes to do such as... singing, cooking, flowers, omurice, etc. that she finds it hard to decide on a theme. Kaoru is at a loss, but the Producer suggests that she should enjoy "summer" to her heart's content!? To fully enjoy summer, the idols are having a blast in the great outdoors. Unable to hold back any longer, Kaoru takes Arisu's hand and runs outside to make memories of their summer vacation!.