Nangong-Block Romance

Are you ready to suck me up, Ball Player?

Eun-Gil, a volleyball player who was once the youngest national representative and the goddess of victory, has now become a national traitor. Eun-Gil tries to save Min-Ah, her only remaining diehard fan, from an arranged marriage she didn't want, only to be reunited with Ha-Hyun, the team owner she'd hoped to never see again. Unaware that Min-Ah is Ha-Hyun's younger sister, Eun-Gil tells him, "If you have to stay with Min-Ah, you'll have to marry me first."

What the heck does that mean? A marriage replacement!

(Source: Kakaopage, translated)