Ploy: The drama series is based on classic Chinese novel “Journey to the West,” but reinterprets the story into the present day and has a romantic-fantasy twist.
Confirmed cast so far includes Oh Yeon-seo, she appeared in Please Come Back, Mister, and My Sassy Girl.![](http://i.imgur.com/LAy4lbr.jpg)
Cha Seung-won, he appeared in The Greatest Love, You're All Surrounded, and The City Hall.
![](http://cdn.kpopfighting.com/wp-content/uploads/2014/11/51762-279421.jpg)
Lee Hong-ki , he appeared in You're Beautiful, You're Beautiful, and Bride of the Century.
![](https://pre00.deviantart.net/9633/th/pre/f/2013/098/b/f/lee_hong_ki_png_by_gajmeditions-d60wb07.png)
Lee Se-young, she appeared in Hit the Top, Vampire Detective, and The Gentlemen of Wolgyesu Tailor Shop.
![](https://pbs.twimg.com/media/C7nEDJZVUAARHOP.jpg)
Lee El, she appeared in Goblin, Liar Game, 7th Grade Civil Servant, My Beautiful Bride, and Black.
![](http://thegioidienanh.vn/stores/news_dataimages/hoangtuan/012017/22/11/4439_lee-el-5.jpg)
For the main male lead role, it has been offered to Lee Seung-gi and he is considering the offer, he has appeared in You're All Surrounded, Gu Family Book, The King 2hearts, My Girlfriend is a Nine-Tailed Fox, and Brilliant Legacy.
![](http://i1003.photobucket.com/albums/af157/tryp96/lsg/CF2/110615_wallpaper_02_1600x1200-1.jpg)
The source where confirmed cast
http://www.dramabeans.com/2017/10/hwayugi-gains-a-mythical-cast-of-characters/
https://www.soompi.com/2017/10/25/lee-se-young-confirmed-upcoming-hong-sisters-drama-alongside-oh-yeon-seo-lee-hong-ki-cha-seung-won/
https://www.allkpop.com/article/2017/10/former-sistar-member-bora-to-star-in-drama-hwayugi-along-with-new-labelmate-lee-seung-gi
https://www.soompi.com/2017/10/26/yg-rapper-one-confirmed-make-acting-debut-hong-sisters-new-drama/