The leader of Rainbow, Jae Kyung, was spotted having a date with three pretty boys.

On March 21, some still pictures of JTBC’s special drama series Monster (directed by Park Soo Chul, written by Kim Min Seok) were revealed.

The cuts showed new charming side of the cast that has never exposed in public before.

Rainbow’s Jae Kyung, in particular, shows an unaffected personality and tomboy charm. The three pretty boys seem friendly with her, causing jealousy among many female viewers.

Jae Kyung challenged as the leading actress of the series for the first time in her life. She dropped her sexy image as a singer and replaced it with a tough, dogged university student Na Yoo Mi. Kwon Se In, who was popular for his “Flower Bong Goo” image in KBS’s Brain, is now changed into a CEO, giving a foresight to the appearance of a cold-hearted urban guy in the series.

Ahn Yong Joon and Ji Il Joo each appeals with a comfortable, intelligent image with luxurious aura, building expectations higher.

A staff member of Monster says, “Despite our worry about the actors’ first encounter with each other, they became friends quite fast. The work is proceeding faster than expected because they trust and depend on each other as they shoot.”

JTBC’s special TV series Monster is about some young people getting together and struggling for a successful business foundation. The first episode airs on Saturday, March 31 at midnight.