Between Dawn and Dusk by the Azure Sea

Love, go to hell!

He once believed that the happiest thing in the world was to hold his lover's hand and see the world together.

The young genius Gu Mu made a vow of eternal love with his beloved Su Pixiu atop Wudang Mountain, never knowing it would be their final farewell. An organization of spirits called the Wuxiang Ruins, in the name of their so-called "compassion," took away his lover and companions one by one, crushing even hope itself. As Gu Mu held their cold corpses and swore an unending vow of vengeance, he transformed from a young man who cared for the world into an asura living only for revenge. Yet after he killed his enemies with his own hands, he discovered that the "Ruins Master," who had orchestrated every tragedy himself...

Would you be willing to bear the infamy of all ages to save the world?