He completely stole the show in Mother. I could feel the desolation and helplessness from him. Honestly the grownup version was so by the book and paled in comparison to this kid that, the later part of the movie felt like a chore. especially since there was another child actor there as well. If he has a fairly happy and caring life, he's gonna be a great actor. (Well he already is)
Kaku Kento first main lead in drama 2012 in movie 2009 yet still considered as rookie?
Kamiki Ryunosuke was given a newbie award last year, he celebrated his 25th year of debut that year. The awards, from what I'm thinking are kind of lost in translation.
Unessessory trevia of Nichkhun during the show. By the end of the show, he was actually the mangnae of the senior team. He didn't know Kangnam was older than him, till the trivia episode of Kangnam's wife came out. After that episode you can see him calling Kangnam, "Hyung".