Danyoung, the only doctor of the Sanwoon-dang, is tasked to treat Baek-gyeom, the weapon of the Spirits who might be her father's enemy. But the herb used for his treatment has the side effect of stimulating...

One day, a dull young man from Japan gets caught up in a heroic summoning and goes to another world. The next time he wakes up, he's not in a castle with a king, but in a deep forest since the summoning fail...