Previously, it was reported that he was considering the offer to act 'Yeo Hoon', who is a younger brother of female lead character 'Yeo Rin'.
Girl group After School's Nana will play the role of 'Yeo Rin', with her castmate Park Hae Jin who plays 'Il Hoon'.
A source from the drama's production team said, "We chose to cast Ren as Nana's younger brother because his pure image aligns the best with the role.
We look forward to work with Ren, who will showcase his potential as an actor as well."
![NU'EST Ren to Join 'Four Sons' with Park Hae Jin and Nana](http://img.sbs.co.kr/newimg/news/20170908/201091515_1280.jpg)
The drama is set to crank in early November.
Good luck, Ren!
(Credit= 'pledisnuest' Facebook)
(SBS Star)