A hardworking salaryman in his thirties, Seiichirou Kondou, is accidentally pulled into a holy maiden summoning ritual and sent to an alternative world, named Romany Kingdom. He spends his life working endlessly, and he starts thinking like a corporate slave and even asks for a job in this new world. This leads him to work in the Royal Accounting Department.
As he works through busy days to rebuild the accounting office, Seiichirou finds a nutritional tonic that erases his fatigue completely. This tonic also cures his long-term illness and exhaustion, and fills his life with happiness. But the side effects are becoming dangerous and threaten his life because there is no resistance in this magical world.
The only way to survive is to have someone who has magical powers help his body adapt to this magical realm. With no better choice, Seiichirou meets Aresh, the captain of the Third Royal Order, who is cool and respected as the Ice Prince.
