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Koji Makaino is a mangaka, and a musician, who goes under the pen and stage name as KOOGY. He wrote on a manga called Colorfuscical and tried to get his fans to vote for him in the surveys to ensure he would get serialized. He tried to work with Yuriko Aoki for a while before she left him to work with Nakai. He has vanished from the manga following the New Year's Party. One of his songs, EUPHORIA, is used as an inserted song in the anime episode Literature and Music.


KOOGY is a young man with black hair and dark purple hightlights. He has a very over-the-top rock star appearance. He usually wears a black leather tank top and pants, along with black fingerless gloves and sunglasses. He wears two necklaces, one is a belt strap that's goes around his neck and the other is a black necklace with 5 pointed charm. He also has his fingers nails painted purple.


KOOGY is very egotistical, believing his fans will vote for his manga just because he is a very popular musician.

But he gets really mad destroying his white guitar after he got the results for the real deal of the golden future Cup filled with rage at the beginning of episode twenty four in season one where they left off in the ending of the last episode


Golden Future Cup[]

KOOGY's manga, Colorfusical, placed second in the Tezuka Award. He then tries to use his status as a musician to get his fans to vote for his manga for the Golden Future Cup. This angers Fukuda Shinta, who leads Akito Takagi, Moritaka Mashiro, and Nakai on a complaint to the editors. KOOGY puts off working on his manga to have interviews, causing his manga to do poorly in the results.

Afterward, at the New Year's party, KOOGY seduces Aoki and performed his song for the other mangaka, announcing that he was going to be serialized in Jump SQ with Aoki on Colorfusical. The news reaches Nakai, who becomes driven to desperation and spends several weeks in the winter drawing Hideout Door outside Aoki's apartment in episode 3 of season 2.


Makaino Koji's manga, Colorfusical, is about a hero who is going to change the world. The hero changes colors with his eyes and changes people's hearts with his voice. It got 2nd place in the Tezuka Award, but placed only 14th in the Golden Future Cup. Nonetheless, because of its first award, it still manages to get serialized in Jump SQ.


All Characters
Shōnen Jump / Shōnen Jack

Moritaka Mashiro + Akito Takagi = Muto Ashirogi | Eiji Niizuma | Yuriko Aoki | Shinta Fukuda | Kazuya Hiramaru | Takuro Nakai | Aiko Iwase | Shoyo Takahama | Shun Shiratori | Toru Nanamine | Koji Makaino | Mikihiko Azuma | Nobuhiro Mashiro | Kisaku Arai | Ryu Shizuka | Hino Kunimi | Ikiki Kajiwara | Kyoichi Murasaki | Kyotaro Hibiki | Shigure Yanagi | Shun Hanshaki


Ichiriki Orihara | Natsumi Kato | Naoto Ogawa | Shinta Fukuda | Shoyo Takahama | Shuichi Moriya | Shun Shiratori | Takuro Nakai | Yasuoka


Akira Hattori | Goro Miura | Hisashi Sasaki | Kim Songyu | Koji Yoshida | Masakazu Yamahisa | Yoshihisa Heishi | Yujiro Hattori | Tatsuro Kosugi

Family / Friends / Classmates
Azuki family

Miyuki Haruno Azuki | Miho Azuki | Mina Azuki

Mashiro Family

Masahiro Mashiro | Kayoko Mashiro | Moritaka Mashiro | Nobuhiro Mashiro | Fumi Mashiro

Miyoshi Family

Yosshi Miyoshi | Kaya Miyoshi

Takagi Family

Akito Takagi's Father | Akito Takagi's Mother | Akito Takagi | Akito Takagi's Brother | Kaya Miyoshi


Hidemitsu Ishizawa

Studio 92

Ehara | Tonaka | Ōbayashi | Tamiya

Together Movies

Gotō and Furuike