Yuu Tomonoga is a brilliant young man who was accepted into an American institution at the age of 13 and then advanced to the graduate program. He loses financing for his study as a result, but he chooses to drop out and pursue the research on his own. He returns to Japan in the hopes of obtaining finance, but he rapidly runs out of funds for day-to-day expenses. Fortunately, he receives a call from an old acquaintance, who offers him a job teaching at an all-girls school.