- Name: Morito Chisaki (森戸知沙希)
- Nickname: Chii (ちぃ), Chiichan (ちぃちゃん)
- Birthday: February 19, 2000
- Birthplace: Tochigi, Japan
- Blood type: A
- Height: 149cm
- Specialty: Dance
- Hobby: Watching idol lives, listening to music
- Favorite Color: Red, orange, yellow
- Looks Up To: Sayashi Riho
- Hello! Project groups:
- Other groups:
- CoCoRo Gakuen (2011–2014)
Morito Chisaki was a member of local idol group CoCoRo Gakuen between 2011 and 2014, she participated in the 2014 Morning Musume '14 (Golden) Audition! during the spring-summer season, but failed to become a member. On November 1, 2014 she graduated from CoCoRo Gakuen, and several days later on November 5th Chisaki was revealed as a member of Country Girls, the revival of past Hello! Project group Country Musume, alongside Hello Pro Kenshuusei members Yamaki Risa and Inaba Manaka, and fellow failed auditionees Shimamura Uta and Ozeki Mai.
On June 24, 2016 it was announced that Chisaki would be the new embassador of her home prefecture, Tochigi.
On June 9, 2017, it was suddenly announced that Country Girls members Chisaki, Nanami, and Musubu would transfer their main activities and become members of other Hello! Project groups. It was further stated that Country Girls would be relegated to only being active during school holidays. Later the same month on June 26th a special edition of the Hello! Project webshow "Hello Station" was released, announcing the group transfers of the three Country Girls members and the debut placements of three previously chosen Hello Pro Kenshuusei. During the episode it was revealed that Chisaki would become a new member of Morning Musume. Her position within a generation was not stated in the initial video reveal, but sub-leader Iikubo Haruna later referred to her as the 14th generation member on her blog.
- [2016.02.19] Morito Chisaki Mini Photobook "Greeting -Photobook-" (森戸知沙希ミニ写真集「Greeting-Photobook-」)
- [2017.02.19] Morito Chisaki (森戸知沙希)
- [2016.09.24] Country Girls 1st OFFICIAL BOOK (カントリー・ガールズ 1st OFFICIAL BOOK)
- TV Programs
- [2015–] Hello! Station (ハロ！ステ)
-  Kizetsu Suruhodo Aishiteru! (気絶するほど愛してる!)
-  JK Ninja Girl (JKニンジャガール) (guest appearance)
-  Country Girls no Tadaima Radio Kenshuuchuu (カントリー・ガールズの只今ラジオ研修中)
- [2017–] marukome Morning Misoshiru Nomou yo! (marukome モーニングみそ汁 飲もうよ!)
- [2017–] Morning Musume no Morning Jogakuin ~Houkago Meeting~ (モーニング娘。のモーニング女学院～放課後ミーティング～)
- Her official Morning Musume image color is pure white.
- Her official Country Girls image color is orange.
- Attended lessons at the Star Project Academy.
- Was previously a member of the idol group CoCoRo Gakuen.
- Participated in the Morning Musume 12th generation "Golden Audition".
- Her favorite sport is basketball.
- Likes the manga "Horimiya".
- Her favorite Hello! Project song is "Wagamama Ki no Mama Ai no Joke" by Morning Musume.