Sister by Day, Mistress by Night

2026·15 Eps

Synopsis

Rosa Ryan, a fallen nobleman's illegitimate daughter, seduces Duke heir Lucien Voss to survive. By day they pose as distant cousins; by night they share a forbidden affair. When Lucien is engaged to Sophia, Rosa plans to marry commoner knight Jon and escape—only to discover Lucien has no intention of ever letting her go.

Forced Love Family Ethics Modern Romance

Sister by Day, Mistress by Night NetShort — NetShort

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NetShort

“Sister by Day, Mistress by Night” (15 EPS) is available on NetShort. Checked 2026-09-10.

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Ratings & Reviews

Latest reviews›

You Are My Antidote

soggywaffle22

Episode 1 might make you go "what IS this lunatic" and bail. He's my favorite short-drama actor and even I hesitated. Please stay with it!! The acting is unreal, the way his eyes go, the way he smiles, each one gets me >_<

You Are My Antidote

mina.07

My favorite of his modern-set work and honestly my favorite short drama full stop. You get the complete unhinged-psycho performance, and I'd say his acting leveled up here. If you're working through his filmography, this is the one.