A Knight Captain is a symbol of the nation and the idol of the people. However, in reality, that role is just a middle management position for show, where one is simply worked to the bone by superiors. Rinna, a proud female Knight Captain living with such a title, encounters a massive Dragon during her duties one day. She tries to fight back, but perhaps due to the exhaustion from her daily grueling work, she is miserably defeated... However, the sight she sees after waking up is unbelievable...!? A Dream and Iyashi "Inside the Stomach" Fantasy dedicated to you who are tired of daily life!!