miss A Suzy transforms into Snow White on the drama, "Big." 

On episode 15 of KBS2 drama "Big," Mary (Suzy) begins to create memories as the two men Kyung Joon (Shin Won Ho) and Yoon Jae (Gong Yoo) begin to get their souls back.

Mary falls deep into her imagination of being beside a sick Kyung Joon. As Mary transforms into Snow White, she turns to her prince, Kyung Joon, and says, "The one you fell in love with while you were sleeping is me." She played with his memory through her romantic confession of love.

As Kyung Joon finds his soul, she says that they have to marry right away. Out of excitement she says, "Should we buy the ring right now?" As Choong Sik places Daran's (Lee Min Jung) ring on top of his mouth, Mary tells him to erase that kind of memory. She tells Choong Sik, "When Kyung Joon wakes up, you prove witness to him."

Choong Sik, who still has feelings for Mary, says, "People are not remembered through the mind, but, the heart." He confessed, "No matter where you are, I'm going to find you in spirit."

Nevertheless, Mary's stalking has continued its path from the beginning. Mary's efforts to stop Kyung Joon from meeting Daran have not stopped, even up to the last episode. This has made the ending even more suspenseful.