Tree of Heaven is a 2006 South Korean-Japanese series starring Lee Wan and Park Shin-hye. It aired on SBS from February 8 to March 9, 2006 on Wednesdays and Thursdays at 21:55 for 10 episodes. The drama is also the final entry in director Lee Jang-soo's Heaven Trilogy which included Beautiful Days in 2001 and Stairway to Heaven in 2003. Also known as Tengoku no ki, the series was filmed completely in Japan and featured a cast of both Korean and Japanese actors.