His name is Chou Than Than, (wtf?) and is currently 20 years old. There isn’t much known about this guy, however, inside source saids that he has an incredible voice and he has a bold Korean face; which is the main reason SM Ent. chose him to be the next member of Suju.
Source: krfilm.net + Jess@KST_CichlidCredit for ShenYuePop.com: Ochibi