So many things I missed while having a bad day, but ok…
Preview of Ryusei no Kizuna w/ Beautiful Days playing in the background in Asazubat… I wanna see dark Nino but this is cheerful (by the preview it doesn’t seem a suspense drama, but we won’t know). 
Download it on Tess’ LJ
Pictures of who will play the child version of the siblings were posted in Ryusei no Kizuna LJ Comm. The one who will play Nino’s child version was the kid who played Sakurai Sho’s child version in Yoiko no Mikata!
You can now pre-order the new shingle Beautiful Days in CDJapan in Limited Edition or Regular Edition or both 
Limited Edition has 2 tracks + DVD of the music video while Regular Edition has one bonus track and karaoke tracks of each songs for 6 songs total. You can safely click on the links as I have no affiliate key embedded
Raise your Hands!