After moving, he transferred to School of Performing Arts Seoul (SOPA), where he later graduated on February 13, 2014.
Tempest gained two new members, Jihun and Youngwon, and were put on the backburner as Nu'est was promoted more heavily.
After the scrapping of Tempest, Pledis released plans for a new boy group entitled "Seventeen".
Instead of debuting as official artists, Seventeen opened a web stream called "17tv" on ustream, showing the growth and training of the 11 possible members.
After making a guest appearance on an early episode, Doyoon, with Seungcheol, joined the lineup of possible Seventeen members when the second season of 17tv began in March 2013.
[13][14] In December, Doyoon, with several other Seventeen members, appeared as back up dancers on SBS Gayo Daejun for label mate Hello Venus.
On October 14, Doyoon posted a photo to his official Facebook revealing his casting in the upcoming movie Hiya.
After filming Hiya, Doyoon gained a supporting role in the morning drama A Bird That Doesn't Sing[18] as the main character's son.
[20][21] Doyoon played the main role of Dokko Mo Ran in the drama adaptation of the popular webtoon Flower Family.