Yu You, a second-year high school student, appears to be a loner, but in fact he is the judge of the underworld, the young master of the cat demon, and the son of Qingqiu's prophecy. There are three seals in her body, three levels of blood, and the power of nine tails.
Transfer student Tu Shan Lingyao is her only deskmate and her only close friend.
From the human world to the underworld, from Qingqiu to the demon world. Nine Deaths Enlightenment, Nine Tails Awakens.
"It's not fate, I chose you and you chose me."
Concept: Destiny is defined by choice, and bonding does not require love.
Expanded into three layers of core:
1. Choice comes before fate: Yuyou and Lingyao are not "destined" bound by heaven, but "I choose you, you choose me." Their encounter was due to their mother's arrangement, but becoming each other's only close friends was the result of active choice.
2. Friendship can be deeper than love: There is no love line throughout the story, but Yuyou and Lingyao are each other's "anchors" and are irreplaceable people in each other's lives. The work attempts to prove that the deep bond at the soul level does not need to be defined by love.
3. Growth is from "passive hiding" to "active control": Yuyou went from hiding his achievements, hiding his cat's tail, and escaping his fate, to becoming "Su Shen", awakening the nine tails, and taking on the responsibility for disaster - only when people are no longer afraid of being seen can they be truly powerful.