作为动画3期的先行，以《摇曳百合：暑假时光+》为题的新作动画将分别于2015年8月和9月各放送1话，内容则是2014年11月上映的《摇曳百合：暑假时光》的后续
充满青春朝气的圣条学院，自初中时代便与井上心叶（入野自由 配音）相识，并因某个事件偷偷喜欢上这名有着温暖和善笑容男孩的琴吹七濑（水树奈奈 配音），也许正是青春的傲骄性格，在同学的追问下，七濑宣言最最讨厌心叶。事后她深感后悔，在好友小森（下田麻美 配音）的鼓励和谋划下，七濑尝试用各种办法表白自己的心迹，可最后不是临阵怯懦，便是弄巧成拙。难道对喜欢的人一展笑容如此困难？少女那充满焦虑和别扭的小情怀。洒满金色余辉的公园，七濑的泪水夺眶而出…… 本片根据野村美月的同名轻小说原作改编。
Not only is Marinette Ladybug, the superheroine that protects Paris from the attack of villains, but she’s also now the guardian of the Miraculous. This means that not only does she need to keep her identity hidden, but also the existence of these turbulent, magical creatures, the Kwamis! Marinette has a lot of pressure, not to mention her school and love life! Now she has less time and opportunities to tell Adrien her feelings... Marinette now has to redouble efforts to protect her secrets and Ladybug will have to become stronger to face an indomitable adversary: Shadow Moth, who can now fuse the Butterfly and Peacock Miraculous! Thankfully, Ladybug can count on Cat Noir and their new superhero allies!
