Six Gravity (Gravi) and Procellarum (Procella), two idol units currently experiencing a dramatic rise in fame. On the day of Gravi and Procella’s handshake event, each of the members are waiting for the start of the event, doing as they individually please.

Kannaduki Iku, while being an member of the unit Procellarum, is also a member of his high school's track-and-field club. That same Iku has been selected as the representative athlete for the track-and-field meet he has always aimed to participate in.

Six Gravity, as part of the promotion for their new single, have become store clerks at the "Animate Store Ikebukuro Main Branch" for a day. Rather than Six Gravity's leader Mutsuki Hajime being today's manager, fellow Senior Group-member Yayoi Haru has been assigned. Haru, who been quite engrossed in his laptop, preparing for this day, has come up with a idea specifically for their project......

Uduki Arata and Haduki You, and Satsuki Aoi and Nagatsuki Yoru, were all double-casted at the same stage play.

One day close to Tanabata, the members of Procellarum are at one of Japan's scariest haunted houses at an amusement park for filming for a television program.

For the shooting of a promotional video, Gravi and Procella are at a resort island! From enjoying marine sports to a beach volleyball showdown, both groups are having their fill of the island and summer!

Gravi and Procella's, who are at a resort island for the shooting of a promotional video, are now involved in more trouble!

One day, Rui caught sight of the "Tsukiusa." mascots (a familiar sight at the "Tsukino Dorms") walking. These "Tsukiusa."s were apparently looking for something important, so Rui decided to give them a helping hand.

I was looking through my script and I and felt that my character was somewhat similar to you back then. I...... don't have many pictures of back then, after all."

Aoi and Koi, as part of a variety show, have to wake-up ambush the members of Gravi and Procella. Even if it's part of work, Aoi, who is not used to doing such ambushes to his friends, and Koi, who's all for it. And so these two quietly sneak into the other members' rooms and give their feedback! Will they be able to succeed in their wake-up ambush?

As the day of Gravi and Procella's joint concert approaches, the spirits of all members are on the rise! Though amidst all of it, only Gravi's leader, Hajime, has glum look on him. While his unit members seem to get worried of him, who is very busy with not only his duty as the unit leader, but also with solo jobs, it seems those aren't the only reason behind his low spirits... The one that Haru, his partner, and Kai, a fellow senior member, chose to become someone that Hajime can consult with is ―― obviously, none other than this person.

Hajime has suggested that during the joint live between Gravi and Procella, all 12 members sing a new song everyone can enjoy. Even though all the members and the managers agree the idea, they would need to get Tsukino Talent Production's President Tsukino Mikoto's approval to be able to turn Hajime's idea into a reality, as well as have him write the song, as he has worked on all their units songs up to that point. But it looks like asking the President such a thing is difficult, as he is currently carrying heavy pressure do to work...?

At last, Gravi and Procella's joint concert, "Full Moon Festival", is starting!