Little Mouse;; Yandere!Seonghwa x Reader [SMUT]

You've escaped the toxicity of your past and greener pastures lie ahead... yet there's a dark cloud brewing overhead, brimming with the promise of retribution. Sometimes it's better to just give in and weather the storm.

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Yandere!Seonghwa x Fem!Reader
Smut

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Warnings;;
Dark fic!! Toxic!FWB!Seonghwa, abusive/loveless relationship, obsessive behaviour, reader is a sub, oral sex (m!receiving), degradation + use of 'Daddy', sadistic Seonghwa, threat of a belting, video filming w/ threat of blackmail, slight dacryphilia

My beta reader said, "Seonghwa is an asshole! He made me feel bad about myself!" so fair warning