"Koi ni Koishite" (恋に恋して, lit.

"Love to Love You") is a song by Japanese singer songwriter Mai Kuraki, taken from her fourth compilation album Mai Kuraki Best 151A: Love & Hope (2014).

It was released on August 15, 2012, and served as the song to the Japanese animation Case Closed.

It was released as a double-A side with "Special Morning Day to You".

A short version of the official music video was first released on Kuraki's official YouTube account on August 3, 2012.