Seiya Kanie -- handsome, scholastically successful and athletic, self-confessed narcissist Seiya Kanie is befuddled. His classmate, Isuzu Sento, gives him a musket and asks him out on a date.

Circumstances and impulse bring Seiya in the position to become the acting owner. He proposes reforms in order to meet the goal of attracting 250,000 visitors within three months, but the crew is full of complaints.

Though arrogant, Seiya solves problem after problem at the park. Isuzu should be happy about it, but something bothers her.

With the 30-yen offer, the number of visitors slowly improves, but money is still an issue. In an attempt to find quick cash, Seiya visits Moffle, and they set off to search for a supposed treasure hidden in a cave.

Isuzu has mixed feelings about Seiya's expert handling of the issues at the park, even having nightmares about her own work. Meanwhile, in an effort to resolve the labor shortage, she begins interviewing potential hires.

The summer is here, and "Splash Ocean", the water park area, is brimming with guests as usual today. Isuzu, Muse, and the other four fairies are busy in pirate costumes. Meanwhile, Joe the shark notices something wrong in the machine room.

Seiya collapses from fatigue and summer cold after having been busy with managing the park for the past few days. To help Seiya, who's worried about his attendance at school, Moffle and others came up with a plan: Pretend to be Seiya by wearing Mogoot Clan's "magical clone suit" and attend school. However...

Muse and others practice for a new show, but they're completely out of sync and uncoordinated. Latifah is worried, and decides to host a sukiyaki party in order to deepen their friendship.

Visitor count is increasing at Amagi Brilliant Park ever since they renovated some of the attractions and started night parades. However, Seiya looked grim as he was uncertain that they would reach the target visitor count before the deadline.

Seiya is more determined than ever, after finding out Latifah's secret. He comes up with an idea that will help them achieve the target visitor count before the predetermined deadline. Tricen, the head of sales, starts gathering information under Seiya's order, but...

Amagi Brilliant Park set a new attendance record after it was selected as the venue for the soccer match. Visitors walk through the entrance gates one after another under Amagi Project's supervision. Latifah prays for them to achieve the target visitor count, but...

Triken takes suggestions from the staff to make a promotional video for the park with dubious results.