|Released||March 18, 2017|
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Morning Musume '17 DVD Magazine Vol.91 is a DVD magazine released by Morning Musume '17. It was released on March 18, 2017 as merchandise for the Morning Musume '17 Concert Tour Haru ~THE INSPIRATION!~.
This DVD magazine is a mystery tour set in a school. The members are separated into teams with goal of quickly solving puzzles and riddled instructions.
- Kikaku Happyou ~ Team Wake (企画発表～チーム分け; Announcement of Plans ~ Splitting into Teams)
- Nazotoki Trial ni Chousen Fukumura Team (謎解きトライアルに挑戦 譜久村チーム; Fukumura Team Challenge the Mystery Trial)
- Nazotoki Trial ni Chousen Ikuta Team (謎解きトライアルに挑戦 生田チーム; Ikuta Team Challenge the Mystery Trial)
- Nazotoki Trial ni Chousen Iikubo Team (謎解きトライアルに挑戦 飯窪チーム; Iikubo Team Challenge the Mystery Trial)
- Kekka Happyou ~ Gohoubi (結果発表～ご褒美; Results Announcement ~ Reward)
- 9th Gen: Fukumura Mizuki, Ikuta Erina
- 10th Gen: Iikubo Haruna, Ishida Ayumi, Kudo Haruka
- 11th Gen: Oda Sakura
- 12th Gen: Ogata Haruna, Nonaka Miki, Makino Maria, Haga Akane
- 13th Gen: Kaga Kaede, Yokoyama Reina
- 10th generation member Sato Masaki is absent from the DVD magazine due to her recovering from a lower back injury at the time of filming.
- This is the first Morning Musume DVD magazine to feature the 13th generation members.
- More footage of the showdown was later released in Vol.94.
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