Bae Yong-Joon to Manabu Kankokugo DS - Date-Hen (バエヨンジュンと学ぶ日本語DS デート編) is a Japanese-language educational game developed and published by Nintendo for the Nintendo DS in 2009. The game stars the popular Korean actor Bae Yong-Joon and is designed to help players learn Japanese through interactive lessons. The game is set in a virtual world, where players take on the role of a character who is studying for an exam. Players must complete various tasks and lessons to progress through the game and earn rewards. The game also features a variety of minigames which can be played to practice the language. Bae Yong-Joon to Manabu Kankokugo DS - Date-Hen is an enjoyable and educational game that can help players learn Japanese in a fun and interactive way.