Ozu decides to take a vacation- his first in several decades. Before going, he reads off a long list of rules- most importantly, not to harm his prized 500-year-old Bonsai tree. Of course, even before he reads this, Mikey accidentally sets the tree aflame. Now, Mikey and most of the gang (excluding Lily, who is their temporary boss, and doing all she can to keep them busy) must work to replace the Bonsai before Ozu gets back from his unusually short vacation.

A new Kappa Mikey game is released and Mikey goes berserk trying to get a copy. In Mikey's absence, Lily is getting swept into the charm of Suave Mikey, a Mikey look-alike, whom they mistake for the real Mikey. However, Mitsuki is quite suspicious- does Mikey really have a car, a boat, and memories of a trip to Venice?

The LilyMu cast borrows a secret jacket that can turn you invisible for a prop. Enticed by the jacket, Mikey takes it and goes wild in Tokyo. Upon bringing the jacket back though, the coat gets stolen by a one-armed man. Can Mikey prove his innonence and capture the thief?

After not being able to lift a prob while on set, Mikey decides to go to a gym and get stronger. A sumo named Yokuzuna becomes Mikey's newest rival and a mysterious trainer helps Mikey in defeating him.

On a tennis court, Gonard is working on his game until he is embarrassingly defeated by the ball machine. When the rest of the cast asks what happened, he describes an assailant that sounds exactly like the ball machine.

Ozu's cherished jade tigerfish ends up missing and he's determined to figure out why. He questions the entire cast for answers, but they each respond with different points of view of the crime.

While horsing around, Mikey and the gang discover a secret floor in LilyMu Towers. Inside, they find a mad scientist and his enlarging ray. Gonard gets hit with the ray and now its up to Guano to use it on himself and defeat MegaGonard.

Ozu gets a vist from Brozu, his cool and irresponsible brother. Because he was born first, he owns 51% of "LilyMu" and decides to run things. He ends up firing his own brother Ozu and making Mikey the producer. Now the cast must learn to deal with Mikey's unusual management style or wind up fired themselves.