"Inside Your Heart" is the second single of J-pop duo FictionJunction Yuuka.

It was released on July 27, 2004.

This single included the ending and one of the two insert songs for the anime Madlax, both composed by Yuki Kajiura.

This single debuted at #22 on the Oricon Weekly Charts and had 6 weeks on charts.

This 2000s Japanese single–related article is a stub.