I'm into Johnny's Entertainment Artists these days and I noticed that a lot of J-Dramas featuring their successful actors also features the Sempais' younger Juniors. I think it's a way to introduce the younger faces.
I figure it'd be fun to start a thread posting pictures of these good-looking guys.
Some Johnnys active in dramas are SMAP, Arashi, NEWS, Kanjani8, KAT-TUN, Yamashita Tomohisa, Hey! Say! JUMP, Kis-My-Ft2, Akanishi Jin, Sexy Zone, Toma Ikuta etc.
disclaimer: photos are google image search results. credits to owners.
http://en.wikipedia.org/wiki/Johnny_&_Associates