While chasing after a cat that stole her breakfast, Nano runs into a student, blows up and finds herself up on a roof with a missing arm. Yuuko goes through desperate means to keep her octopus sausage from being sullied, while Koujirou Sasahara makes a scene at the school's opening ceremony over bringing his goat to school only to be shot and reprimanded by Misato Tachibana, and Yuuko tricks Mio into pressing the fire alarm. Later, Nano begs her creator, the Hakase, to remove the noticeable windup key on her back, but she refuses because she thinks it is cute.

The incantation of resurrection. A shark. A warrior never goes back on her word! My life is over!

I'm sorry I didn't eat your black beans! I won't crumble under such threats! In human terms, I'm 20 years old. Earth Dangerous!

It doesn't grow from the sides! It's a snowman. And who would give gum to a cat, you fool? Super ultra great delicious wonderful...

Why do magnets attract each other? God is dead! The baby is coming! I'm going to draw an awesome man!

I accept her challenge. What is the principal doing to that deer? Death or die! Mio-chan, stop! You'll kill yourself!

This is simply our just God's punishment, Albert. Are you dating anyone right now? If I don't pawn this scythe and buy some food, I'll die. If you get this question right, you'll receive an arm!

I've got an explosive desire to visit an air-raid shelter! Everything you own is garbage! Just let me take it off when I'm ready. He made a snot bubble. A masterpiece.

I'm dreaming. I must be dreaming... They may maintain their flavor, but they're not maintaining their spirit! No matter how many I kill, they never learn their lesson. My lower half is unprotected!

Someone put in stained glass! Don't expect us to have infinite water! Did you know mature people don't eat snacks? When I grow up, I want to be a frill-necked lizard.

Pretending to be asleep won't do any good! Super ultra great delicious wonderful bad. That must be the power of Daiku Industries. Surely happiness must taste like mud.

It's hot... It's so hot! I'm just hoping aliens invade... 5,000,000 yen per shot. The sleeping princess woke, without a kiss.

The kid is up to something ridiculous again. Your trick is out in the open! Buy it! Buy it! Buy it! Buy it! Starting tomorrow, you can go to school.

Nano goes to school, the Go-Soccer Club learns the rules, while Mio and Yukko yell compliments at each other.

Everybody's out to prove that Nano's really a robot — especially the science teacher. The Professor gives Nano a machine gun arm and a new "Reaction function." Meanwhile, Mr. Takasaki sets his sights on the student advisor, Ms. Sakurai.

Yukko can't order a cup of coffee, Mio has to fight to keep her secret. And Nano gets a suprise visit at home.

Sakamoto loses his scarf to a very polite crow, three people are buried alive, and Yukko is determined to no longer call out Mai's jokes.

Yukko is on her way meet Mai in a neighboring town, where Mai supposedly has a way to get free candy, but on her trip she constantly makes a fool of herself and gains a stalker. The professor creates Biscuit #2, but he isn't that impressive. And the servants of Starla are playing a very deadly game.

Yukko tries her best to teach Mio. Sakamoto and the Professor have a fight. And we witness a high level, no holds barred game of Go-Soccer.

Mio has enlisted her friends to help her finish her manga. The material proves to be to risqué for Nano, Yukko doesn’t want to screw up, and Mai is bored.

Misato, Weboshi, and Fe-chan talk about their current love interest. Mr. Takashi runs into Ms. Sakurai; is this a date!? The soldiers can’t find the last wooden cube, but a new challenger appears.

Tsuyoshi attempts to disprove exorcisms. Fe-chan tries to look on the bright side of life, while Sakamoto and the Professor are surrounded by terrifying dogs.

Mio is poisoned, Makoto is caught, Yukko makes a tough decision, and Mai tries to make peace with the Professor.

Yukko has big news! Mihoshi and Misato share a sister moment. And who does Nano love more?

Misato and Sasahara get a little closer, Mio goes for a run, and Nakamura enters the lair of the beast.

Let's have a birthday party for Nano! Professor, what do you mean, "a little one?" Got it! I'll take this ugly one away, too! Cake, cake, cake!