Main characters: Liu Qingmian (top/master) x Bai Sijiu (bottom/disciple)
Tags: Equally matched leads / Master and disciple, older top / Replacement trope / Extreme obsession / Heart-wrenching / Xianxia cultivation
A descent into obsession over a "replacement"
He is the White Cloud Sect's most brilliant Ninth Elder, and she is his only disciple.
Liu Qingmian was a child found amid desolation and raised single-handedly by his master, Liu Su. Deprived of love from a young age, his dependence on his master gradually twisted into an unspeakable love. But his master, who cultivated the Heartless Dao, chose to travel far away, leaving him only an ice coffin.
To forget that person, Liu Qingmian switched to cultivating the Heartless Dao. Yet a hundred years later, at the sect's grand ceremony, he saw a face strikingly like his master's: Bai Sijiu.
That face was a sharp blade, piercing the defenses Liu Qingmian had built around his heart over a hundred years. He knew it was an illusion, knew this was a doomed entanglement, but he could not stop himself from taking this disciple under his wing. Looking at Bai Sijiu, he seemed to see the person he had longed for but could never have.
In the name of being a master, he acts out his obsession. He keeps Bai Sijiu imprisoned at his side, speaking the cruelest words in the gentlest voice and forcing him to play the role of someone who "never existed." In this love affair called master and disciple but which is really imprisonment, Liu Qingmian is both the abuser and the lovesick man who was shattered long ago.
Great work, author!