Nae Mogeul Biteuneun Guwonja

Elaina, the illegitimate child of a count’s family and a cripple. She lives a lifeless existence, enduring the cold neglect of her family. Just before being sold off in a marriage deal to an old marquis, Elaina meets the "Monster Prince" Sinclair, who shows up with a marriage proposal in hand, saying he wants to marry her. Sinclair proposes a contract marriage, asking her to stay by his side only until he becomes emperor. Contrary to the rumors, Sinclair is tsundere but also surprisingly caring, protecting her and worrying about her well-being. Elaina finds herself slowly drawn to him. But then... She begins to suspect that this prince might actually be Len— the boy from her childhood who was both her first love and the one who caused her to become crippled. “Are you... really Len?” (Source: Naver, translated)