Thousands of years ago, he was the top demon of the prehistoric demon clan and witnessed with his own eyes the decline of the demon clan during the Lich Tribulation.
Thousands of years later, he taught Huangdi, the human emperor, to defeat Chiyou and travel to the far east. Yakumo's name resounded throughout the island country, and even the great god Amaterasu fell under his robe.
Now, he has signed an agreement with the world consciousness of another world and has become the only guardian of the world in the second dimension.
My name is Yakumo Yu, the oldest demon sage in Gensokyo!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
