|Born||February 17, 1998|
|Associated Acts||Uta Shoujo, Puri♡Kuri|
|Member Color|| (2015-Present) Orange|
(2014-2015) Emerald Green
|Debut Single||Seishun Kozou ga Naiteiru|
|Time in Group||8 Years, 0 Months, 1 Day|
|Time in Group||5 Years, 5 Months, 28 Days|
Natsumi has four brothers, three older brothers and one younger brother. She has one nephew from her eldest brother.Her father is a flight instructor and former helicopter pilot in the Japanese Air Self-Defence Force.
During the year 2016, Natsumi graduated high-school. She currently attends university and is majoring in aviation.
- Velvet & Maruyama Megumi: The three girls are often see as a trio. They perform trio songs together at concerts and have a strong bond. Even though they're not an official unit, they act like one anyways.
- Ishimura Saki: She gets along well with STARGAZER member Ishimura Saki.
- Hasegawa Mahina: The two are known to practice together. Prior to her debut, Natsumi served as Mahina's mentor.
- Saotome (五月女): Means "early maiden"
- Stage Name: Saotome Natsumi (早乙女なつみ)
- Birthdate: February 17, 1998
- Birthplace: Kanazawa, Ishikawa Prefecture
- Blood Type: O
- 2xWings Status:
- 2014-06-28: Uta Shoujo member
- Years in Uta Shoujo: 5 Years
- Uta Shoujo Color:
- Emerald Green (2014–2015)
- Orange (2015-present)
- Audition Song: "Blue Bird" by Ikimono-gakari
- 2xWings Groups: