Shinobu Kokoro: Hidden Heart

Shinobu Kokoro: Hidden Heart is the title of a ninja yaoi manga by Temari Matsumoto. The manga was licensed in the United States by BLU, the Boys Love branch of TokyoPop, in November 2005.

Reception
Krista Hutley for the Library Journal said of Shinobu Kokoro: "Themes of passion and loyalty weave through the three romances, which are sweet if superficial." Tom Rosin for MangaLife noted the explicitness of the manga. Julie Rosato disliked the young and compliant ukes in the stories, but enjoyed Matsumoto's semes.