|Born||January 15, 2002 (age 17)|
|Joined||November 29, 2016|
|Senbatsu Count||2 times (1st/2nd)|
|Time in Group||2 years, 2 months and 18 days (ongoing)|
あなたの心の後に来る！ それは誰ですか？ （ナギ！ナギ！ナギイチ！）柏木ナギサはコチラ！
Anata no kokoro no nochi ni kuru! Sore wa daredesu ka? (Nagi! Nagi! Nagiichi!) Kashiwagi Nagisa wa kochira!
Coming after your heart! Who's it going to be? (Nagi! Nagi! Nagichii!) Kashiwagi Nagisa is here!
- Favorite 48g member: Abe Maria
- Favorite 48g song: Nanka, Chotto, Kyuu ni...
- Favorite food: Pancakes
- Favorite drink: Coffee, Tea
- Favorite color: Forest Green, Gold, Purple, Light Brown
- Favorite animal: Elephants, Cats
- Ambition:Actress, Model, Singer/Songwriter
- Surpassed her previous goal of 200 songs on July 2, 2017. She says she will now aim for 500 songs.
- Is really short (5'0 as of October 2016).
- Not good with remembering numbers and important dates.
- Likes Minnie Mouse and Hello Kitty.
- Has a huge list of songs that she wants to sing with FUN48.
- Has never dyed her hair.
- Became a big fan of Cirque Du Soleil after seeing La Nouba in Disney Springs. She recently went to see LUZIA
- Joined FUN48 as a member and the Captain of Team N on November 29, 2016
- Removed from captaincy on May 18, 2017 (May 2017 Team Shuffle)
- FUN48 A-Sides
- FUN48 B-Sides
- Yaruki Hanabi (Party ga Hajimaru yo)
- Kakkowarui I love you! (Party ga Hajimaru yo)
- Mae Shika Mukanee (Boku wa Inai)
- Tsugi no Season (Boku wa Inai)