Raised by the wolves, Chu Youwen is swift as the wind. Human in appearance and wolf in nature, he is later adopted by the King of Yang and created Prince Bo. Growing up with the wolves, he knows very little about human society and human affections. The first time a girl has treated him as a human being and even risked her life saving him is also the first time he experiences human affection, and it turns out to last forever. He swears to protect the girl and later he finds out that first affection is called love. When they have grown up and met again, she has to shoulder the responsibility of the kingdom and becomes the target of the enemies. As they become embroiled in a struggle for power, the scariest thing for her is not bumping into this sinister and dreadful enemy who’s always lurking in the dark, but that fate has somehow made him her only true love.