Suzy revealed the reason of Shin Won Ho's mother's death.
On 26th, the new episode of KBS 2TV drama 'Big' showed Jang Mari(Suzy) worrying about Kang Kyung Joon(Gong Yoo) treating her cold.
Mari told Gil Daran(Lee Min Jung), who was looking for Gil Choong Shik(Baik Sung Hyun), that he is at Seoul station, and told Kang Kyung Joon to come to a spa in Noryang-jin.
Daran, who trusted Marie's words, ran around the entire Seoul station, looking for Choong Shik, but it was Marie's lie to stay with Kyung Joon, and Daran fell in a danger, getting threatened by homeless people.
Kyung Joon, who found out that Marie lied to her, got furious. However, Marie said, "Kyung Joon got angry again because I lied," and "They reason why Kyung Joon doesn't like me is because he think that I killed his mother."
Marie recalled the day of Kyung Joon's mother's death. It was the day that Marie's father was to make a propose to Kyung Joon's mother, and Marie asked Kyung Joon to stop his mother.
Kyung Joon told his mother to stay with him, and Kyung Joon's mom promised to do so.
However, while Kyung Joon and his mother was heading home together, his mother was killed by a stranger's gun shot, and when Kyung Joon looked around, it was too late.
Kyung Joon showed his tears, saying, "She wouldn't have died if I didn't asked her to stay with me," and gave her a hug.