'Kang Seongho(31/M)' struggles to keep his street food stall business afloat near a high school. One day, a secret door appears in a shabby corner of the room above his shop.
When Seongho opened the door out of curiosity, he encountered the lush forest of the otherworld, "Fantasia," there. While admiring strange fruits and peculiar creatures, Seongho decides to utilize the ingredients from Fantasia to cook dishes to sell in his own shop.
Thanks to these otherworldly ingredients, customers begin to have unique experiences one by one, and Seongho's street food stall transforms into a nationally renowned eatery featured on TV. By day, he's a street food vendor, but by night, he becomes an ingredient hunter roaming Fantasia, crafting dishes like 'tonkatsu that doesn't make you gain weight for an hour' and 'smoothies that cure headaches'.
Buoyed by his success, he decides to open a second street food stall in Fantasia.