"Ninja Assassin" is a 2009 action thriller film directed by Jaume Balagueró and produced by Bereta Pictures. The movie stars Rain, a South Korean singer and actor, in the lead role of Jae-Ho, a rogue ninja who escapes from his clan and seeks refuge in Berlin, Germany.
The movie begins with a flashback to Jae-Ho's childhood, where he is trained as a ninja in a secret clan in South Korea. As he grows older, Jae-Ho becomes disillusioned with the clan's brutal methods and decides to escape. He flees to Berlin, where he tries to start a new life.
However, his past catches up with him when a young woman named Miho (played by Min-sik Choi) arrives in Berlin, seeking revenge against the ninja clan that killed her family. Jae-Ho is forced back into action, using his ninja skills to protect Miho and take down the clan's ruthless leader, Tsukumo (played by Hiroyuki Ikeuchi).