This may be worth checking out:
The official website of the Spring 2016 anime Sansha Sanyou has announced additional production staff and voice cast members for the series. A new key visual and a promotional video were also revealed.
Sansha Sanyou adapts the 4-koma manga drawn by Cherry Arai. Animation studio is Doga Kobo is producing the anime under the direction of Yasuhiro Kimura. The series will begin airing on Tokyo MX and AT-X at midnight on April 11.
Cast
Mitsugu Yamaji: Kenji Akabane (The iDOLM@STER)
Kou Hayama: Asuka Nishi (Kiniro Mosaic)
Yuu Takezono: Haruka Watanabe (Chaos Dragon: Sekiryuu Seneki)
Sakura Usuda: Nao Natsuno
Hajime Tsuji: Kotone Kuwayama
Sasame Tsuji: Chiemi Tanaka
Staff
Chief Animation Director: Jun Yamazaki (Freezing Vibration), Motohiro Taniguchi (Yuru Yuri SanāHai!)
Art Director: Masaaki Kawaguchi (Plastic Memories)
Color Design: Yuka Itou (GJ-bu)
Director of Photography: Kunihiko Itou (Gekkan Shoujo Nozaki-kun)
Editing: Daisuke Hiraki (Mikakunin de Shinkoukei)
Music: Shuuhei Mutsuki
Sound Director: Masaki Tsuchiya (Kitakubu Katsudou Kiroku)
Sound Effects: Hiromune Kurahashi (Amagi Brilliant Park)
Opening Theme: "Clover♣Kakumation" by Triple♣Feeling
Ending Theme: "Goochoki Parade" by Triple♣Feeling
PV
Source: Comic Natalie
The original story: user link on myanimelist.net
Certainly original, if nothing else.