Our world is full of joy!!.The next group Dekoration, formed of Kirari Moroboshi, Rika Jougasaki, and Miria Akagi, are set to appear at several events as part of a collaboration with the Pika Pika Pop clothes brand. After their first event, Mika, who was watching in disguise, gives the girls some advice on how to better captivate the audience, expressing some concern about the Producer letting them have too much freedom. Before their next event, the girls decide to stop for crépes, inspiring the Producer to take photos of them for the project's homepage. However, the girls become separated from the Producer when he gets taken in by a policeman after being mistaken for a pervert. After being bailed out by fellow staff member Chihiro Senkawa, the Producer, the girls, and Mika all end up going on a frantic search for each other. As Kirari blames herself for what happened, Rika and Miria encourage her to head towards their venue in costume, attracting everyone they come across to follow them and reuniting with the others in the process.