Ochanigosu.

• Ja Kanji — お茶にごす。 • Genre — Comedy, yankī

• Type — manga • Author — Hiroyuki Nishimori • Publisher — Shogakukan • Imprint — Shōnen Sunday Comics • Magazine — Weekly Shōnen Sunday • First — April 4, 2007 • Last — July 29, 2009 • Volumes — 11

• Type — drama • Director — * Takeshi Furusawa • Kōji Takashi • Writer — * Takuya Katō • Shūji Yuki • Music — Yusuke Hayashi • Network — TXN (TV Aichi, TV Osaka, TV Tokyo) • First — October 8, 2021 • Last — December 24, 2021 • Episodes — 12

• Portal — yes Ocha Nigosu, also known as A Bad Boy Drinks Tea!, is a Japanese manga series written and illustrated by Hiroyuki Nishimori. It was serialized in Shogakukan's Weekly Shōnen Sunday from April 2007 to July 2009, with its chapters collected in 11 tankōbon volumes. A 12-episode television drama adaptation premiered in Japan on Amazon Prime Video in March 2021 and was broadcast on TV Tokyo from October to December of the same year.

The story follows the high school delinquent Masaya Funabashi, better known as "Devil Ma-kun", who is trying to reform his image by joining the Japanese tea ceremony club.

• Masaya Funabashi • Nobuyuki Suzuki • Now a freshman in high school, "Devil Ma-kun" is hoping to reform his image after being labeled a delinquent in junior high due to his tough appearance, which caused him to get into a lot of fights. His explanation is that after winning one fight the losers comerades challenged him as well, and after their losses more and more people started challenging him to fights. While hoping to discard his bad image he tries to join a club, and chooses the tea club as it is the only one whose representatives are not to afraid to ask him. • Wataru Yamada • Toshiki Seto • Masaya's partner in crime. They have known one another since elementary school, and Wataru also has a reputation for being a troublemaker. • Naomi Anesaki • Rinka Kumada • The head of the tea ceremony club, she is very open-minded and was quick to embrace Masaya's desire to reform his image. • Kaho Asakawa • Minori Hagiwara • Chika Iikura • Seira Nagashima • Tamami Shindaiji • Karin Nishina • Tamiko Okunuma • Yuzuki Hirakawa • Kōki Kashizawa • Naohiro Yamamoto • Kitanuma • Shogo Hama • Hiroshi Tatejima • Tooru Nomaguchi

Ocha Nigosu, written and illustrated by Hiroyuki Nishimori, was serialized in Shogakukan's manga magazine Weekly Shōnen Sunday from April 4, 2007, to July 29, 2009. Shogakukan collected its chapters in 11 tankōbon volumes, released from August 10, 2007, to October 16, 2009.

In December 2020, it was announced that a 12-episode Japanese television drama adaptation would premiere on TV Tokyo in 2021, starring Nobuyuki Suzuki as Masaya Funabashi. The 12 episodes first premiered on Amazon Prime Video on March 3, 2021. It was broadcast on TV Tokyo from October 8 to December 24, 2021.