Lag's friends Zazie and Connor recommend he go for a checkup with the medical team, after he arrives at work one day exhausted from his busy days as a Letter Bee. The head of the medical team is Dr. Thunderland Jr., a man with an odd taste for dissection, leading him to be called "The Corpse Doctor" by many out of fear. He takes an interest in Steak and captures him, because Steak is a species known as a Kapellmeister which was thought to be extinct. Lag and Niche hurry after the doctor to rescue their friend...