พ่ายรักคุณพี่สาวใจร้าย (Lost in love with your cruel sister)

Mouth says that he hates parasitic children like 'Nam Khing', but when someone comes to flirt with him, The mischievous female president, 'P'Prang', turned out to be so jealous that she fainted. Pulling in his adopted sister to punish his love until it crosses the line! Among the secrets under the roof Who will lose to the heart first?