|Birthdate||November 7, 2000|
|Birthplace||Niigata City, Niigata, Japan|
|Current Age||22 Years Old|
|Social Networks||7gogo / Instagram / LINE / SHOWROOM / Twitter|
|Idol Career Info|
|Debuted||June 2018 / 2nd Generation|
Otsuka Nanami is a member of NGT48's 2nd Generation.
- Hobbies: Listening to music, moving your body
- Special Skills: Badminton
- Favorite food: Chocolate, Ramen
- She is active in the NGT48 ramen club
- Favorite words: I will not give up before I do it
- Message: I will do my best not to defeat myself any time so that fans can show off the best performance! please cheer for me.
- Her audition number was 10, and her final round song was "Yasashisa ni Tsutsumaretanara".
- Her original nickname was "Nanachi".
- NGT48 Kenkyuusei → 2nd Generation
- Joined NGT48 as a Kenkyuusei on June 12, 2018
- Promoted to 2nd Generation on December 25, 2020
- Kyou wa Make Demo Ii (Sekai no Hito e)
- Kokai Bakkari (Sherbet Pink)
- Ramen Wonderland (Awesome)
- Bokura no Tochiongar (Ponkotsu na Kimi ga Suki da) (Center)
Fortune cherry B-Sides
- NGT1 (Yume wo Shinaseru Wake ni Ikanai)
- Bye Bye Bye (Under)
- NGT2 (NGT48 Gekijou Revival)
- Gesuna Yume
|NGT48 2nd Generation|
| Otsuka Nanami ・ Ogoe Haruka ・ Kawagoe Saaya ・ Sogabe Yume|
Furusawa Mana ・ Mashimo Kaho ・ Mimura Hino