L DK, stylized as L♥DK, is a shōjo manga by Ayu Watanabe, serialized in the Japanese manga magazine Bessatsu Friend since 2009; it has been adapted into a live-action film that was released in 2014.

Bessatsu Friend , formerly known as Bessatsu Shōjo Friend , is a Japanese shōjo manga magazine published by Kodansha. It was originally conceived as a bessatsu, or companion magazine, to Shōjo Friend, which is no longer published. Bessatsu Friend is commonly known by the abbreviated name Betsufure (別フレ) and is published on the 13th of each month.