Suzy did a 'running dance' for the 'Book of the House of Gu'.

The drama released a BTS video clip from one of its scenes on the 5th, showing Suzy and Lee Yoo Bi talking. In the scene, Suzy teared up at the end because she got so emotional, and during the break, Lee Yoo Bi joked, "Yeo Wool, dance for me there". 

Suzy hesitated at first, but since there was a lot of time left until the next cut, she started to play around with the set and the props until she finally started to dance. She started to 'run' in place comically, bursting into a smile and making Lee Yoo Bi giggle as well.

Previously, Suzy had promised to do a sexy dance with her on-set costume if the ratings for the drama surpassed the 23% mark. It's not quite there yet, so the dance wasn't quite 'sexy' as it was cute and funny, but maybe we'll get to see Dam Yeo Wool perform a sexy dance soon!