Mogura no UtaMogura no Uta.

Mogura no Uta (土竜の唄; 'Mole's Song') is a Japanese manga series written by Noboru Takahashi. It was serialized in Shogakukan's Weekly Young Sunday from 2005 to 2008, and transferred to Weekly Big Comic Spirits in 2008. It was adapted into a live-action film, titled The Mole Song: Undercover Agent Reiji, released in 2013, which was followed by a sequel, The Mole Song: Hong Kong Capriccio, released in 2016.