[Urban + passionate + power fantasy + live-in son-in-law + invincible] Su Mu has suffered from a sleep disorder for three years, sleepwalking at random whenever he falls asleep. Unable to work, he’s looked down on as nothing but a kept man.
To save his mother, he married into another family, only to suffer humiliation at every turn. He serves tea, pours water, washes feet, and massages backs every day, yet all he gets in return are scornful looks.
He regains his family’s jade pendant and recovers the memories he lost over the past three years.
It turns out that every time he sleepwalks, a fearsome figure appears in the world: the Night King!