'Baby') is a Japanese manga series written and illustrated by Tetsuji Sekiya [ja].

It was serialized in Shogakukan's seinen manga magazine Big Comic Spirits from December 2004 to February 2009, with its chapters collected in 15 tankōbon volumes.

was serialized in Shogakukan's seinen manga magazine Weekly Big Comic Spirits from December 13, 2004,[2] to February 23, 2009.

[a] Shogakukan collected its chapters in 15 tankōbon volumes, released from March 30, 2005,[5] to April 30, 2009.

[7] Shogakukan collected its chapters in 13 tankōbon volumes, released from August 28, 2009,[8] to January 30, 2013[9] An eleven-episode television drama adaptation, starring Jun Matsumoto as Shogo Ban, was broadcast on Nippon TV from April 18 to June 27, 2007.