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A young man gets a dream job as producer for an entire unit of idols. There's just one catch, though: they're all in elementary school!

Nina loses something very important to her, and the entire Third Entertainment Division comes together to help her get it back.

The Third Entertainment Division gets its first public exposure when Miria goes on an internet livestream.

Momoka gets a request to be on a daytime television show, but the person they want to see isn't who she really is. Is she willing to change who she is to become a star?

Risa gets her first shot at being in a movie. She works hard for the audition, but...

Haru is given a chance to be a backup dancer, but refuses to wear the girly outfit. Is being an idol what she truly wants to do?

It's a big day for Koharu as she goes to the zoo with her special friend, a pet iguana.

Chie helps out a fashion show, but she's nervous about going on stage. What if she messes up and ruins things for everyone? Can the other girls help her fulfill her catwalk dreams?

The producer takes the idols out for a relaxing summer vacation, but he's got something on his mind...

The girls of the Third Entertainment Division perform their first song as they aim for their big debut.

The Third Entertainment Division girls gets a new name for their unit and prepare for their debut, but Arisu has something on her mind...

The senior idols will have a great concert, but the U149 girls won't be able to participate! Can an unusual encounter change this desolate scenario? And if it changes, will everyone be able to get the new idol group on stage in time?!