Leni, Fiona and Miguel are heading to the food court, since it's their lunch break. The three friends attempt to choose a place to eat as fast as possible because of how short their lunch is. Miguel's suggests hamburger smoothies out of panic, and the three friends immediately regret that decision. This leads the three friends to complain how Ms. Carmichael is taking the fun out of work, like telling Fiona to restock the sweaters due to changing seasons, instructing Miguel to change the outfits on the mannequins after putting the finishing touches, and telling the three to unpack the boxes without damaging any of them. The moment they vent their frustrations, Ms. Carmichael texts them to come back to work immediately.
Arriving back to Reininger's, Ms. Carmichael announces to her three employees that she has been chosen to represent Royal Woods in a sock-folding competition and appoints Leni to temporary manager. The news amazes the three friends, especially Miguel and Fiona, since they see Leni as their way to make work more enjoyable. Sometime later, Lori picks up Leni from the mall, and as they ride home, Lori takes note on how depressed Leni looks. Leni explains that although she appreciates being promoted to temporary manager, she fears that she might end up being as demanding as Ms. Carmichael. Lori instructs her to simply go with what Miguel and Fiona want, so that way, Leni won't end up like her boss.
The next day, Miguel and Fiona arrive and are amazed that Leni had gotten them their favorite breakfasts ready in the break room. At that moment, Leni arrives with a new name tag that describes her role as "FUNager", which, according to Leni, "is like a manager, but more fun." Throughout the whole day, Leni makes work fun for Miguel and Fiona by turning folding sweaters into a competition, doing a faux runway with a mannequin (which they name "Tanya") and wrapping boxes of various sizes. With all of their work done, Leni tells her friends that they can take a long lunch so they can try out the new dim sum restaurant.
The moment Miguel and Fiona leave, Leni discovers that there are numerous buses parked outside. Looking through the calendar, Leni discovers that today is the Senior Shop-aganza, which is the busiest day for the store. Leni attempts to call Miguel and Fiona to come back to the store to assist the countless elders, but out of fear of being like Ms. Carmichael and not wanting to interrupt them, Leni decides to handle the elders herself. However, not long after the elders enter, Leni is bombarded with requests, like Scoots wanting Leni to check the value of her pile of gift cards, Pop-Pop and Myrtle wanting matching athletic wear, and an elderly man wanting a box gift-wrapped ASAP. When the amount of demands become too much for her, she retreats to the back room and calls up Miguel and Fiona, telling them to come back to the store.
Arriving back to the store, Miguel and Fiona take note on the madness occurring and immediately follow Leni's orders on what to do. Sometime later, all of the elders leave with satisfaction, and Leni tells her friends to have lunch without her. When Miguel and Fiona ask why she doesn't want to come, Leni believes that she lost her friendship with them due to making them come back to the store during their lunch break, just like how Ms. Carmichael would. The two state that it was the Senior Shop-aganza, so they had a good reason to come back to the store, as well as say that because she made their day fun, they're still her friends. The three friends (along with "Tanya") proceed to eat their lunch at the new dim sum restaurant.