Tokyo Broadcasting System Television
Nagasawa starred in many Japanese television drama series. Early supporting roles in the 2002 NHK asadora "Sakura" and the 2005 Tokyo Broadcasting System Television live action manga adaptation "Dragon Zakura" led to more TV work, including a leading role in the 2007 Fuji TV series "Proposal Daisakusen" ("Operation Love"). Her performance in "Proposal Daisakusen" ("Operation Love") received the most votes in the Nikkan Sports Drama Grand Prix Best Actress category.