Madame Antoine drama costars Han Ye Seul and Sung Joon became a glamorous couple for the December issue of Cosmopolitan.

During the candid interview, the pair discussed their personality types, future roles they would like to tackle and how the drama has affected their definition of love.

When asked to describe each others' most charming aspect, Han stated, "Joon is so full of charm! First of all, he has a classic style. And I should say there's this sense of intensity? He seems to be deep and I feel like his personality is about being focused. I think this is what comes out when he acts."

Meanwhile, Sung responded, "Ye Seul is really a bright person. To the point that it makes people around her also happy. And she doesn't waste an ounce of this bright energy. Her sincerity is a big charm."

Since Madame Antoine is about a psychotherapist who is trying to prove love doesn't exist, the actors got into character by taking the Myers-Briggs Type Indicator (MBTI) test. The test gives takers a personality type.

Sung revealed, "I think my result was INTP, the snarky analyst type. I'm mostly cool-headed but there are many times when I easily have fun."

On the other hand, Han took the test several times because of her indecisive nature.

She joked, "The result came out different every time for me! So I thought about it. Was it impossible for me because I couldn't give a straight answer to any question or did I have a personality with too many sides? As an actress, I get to portray various roles, so I think I don't have just one image and each role gives me a new image each time."

To check out the accompanying photoshoot, click here!

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