Mika wants to be the best teacher in the world: able to inspire her students to work hard and excel in their studies. Though she tries her hardest every day, she’s only about four and a half feet tall, so being taken seriously is difficult to say the least! To make matters worse, she teaches quite possibly the strangest bunch ever, from the resident super otaku to the loving lesbian who thinks Mika is the cutest thing born on this Earth. Now, amidst tests galore and homework aplenty, Mika's class starts another year on their path to graduation...