Euonymus oxyphyllus Miq.

Pictures 1 & 2 in Japan, Honshu, Kawaguchi lake, May 2008
Pictures 5 & 6 in Japan, Honshu, road to Mt. Rokko, May 2008
Pictures 7 & 8 in South Korea, Seoraksan, September 2011
Pictures 9, 10 & 11 in South Korea, Gayasan, September 2011
Picture 12 in South Korea, Jirisan, September 2011