Say Hello to Black Jack

Say Hello to Black Jack (ブラックジャックによろしく) is a Japanese manga series written and illustrated by Shūhō Satō. It was serialized in Kodansha's Morning magazine from 2002 to 2005, with its individual chapters being collected into thirteen volumes.

A sequel, titled Shin Black Jack ni Yoroshiku, was serialized in Shogakukan's Big Comic Spirits magazine from January 2007 to July 2010, with its individual chapters being collected into nine volumes.

Manga
Written and illustrated by Shūhō Satō, the series began serialization in Kodansha's Morning magazine in 2002. It concluded its serialization in 2005. Its individual chapters were collected into thirteen tankōbon volumes, released from June 21, 2002, to January 23, 2006.

A sequel, titled Shin Black Jack ni Yoroshiku (新ブラックジャックによろしく), also written and illustrated by Satō, began serialization in Shogakukan's Big Comic Spirits magazine on January 22, 2007. It completed its serialization on July 17, 2010. Its individual chapters were collected into nine tankōbon volumes, released from February 28, 2007, to September 30, 2010.

In April 2012, Satō canceled his contract with Kodansha and warned that any remaining copies in bookstores were "illegal publications". In August, Satō began allowing free secondary use of the title, allowing people to "use the original work to create editions in foreign languages, films, applications, anime, and more without any royalty payments", effectively putting the series in public domain. In February 2013, Satō said he has made ¥100 million since allowing secondary use.

In 2010, it was reported that Niconico was working with Satō to translate the series into English. The series became available in English on Amazon Kindle following Satō allowing free secondary use.

Other
A live-action television drama adaptation, with direction by Shunichi Hirano, scripts by Noriko Goto, and Satoshi Tsumabuki starring, was aired on TBS from April 11 to June 20, 2003.

A stage play adaptation was performed in the Theater Sun Mall in Shinjuku from September 11–16, 2013. It starred Noboru Kaneko and Mami Yamazaki.

In 2013, Anipopo began a crowdfunding campaign to create an anime adaptation produced by Studio Kuma.

Reception
The series received an Excellence Award at the 2002 Japan Media Arts Festival. The series won the grand prize in the 2004 Japan Cartoonists Association Award.

By October 2018, the series had 17 million copies in circulation.