- Name: Sakaue Mayu (坂上 麻優)
- Stage Name: Sorane Mayu (空音マュ)
- Birthdate: September September 4, 1998
- Bloodtype: O
- Height: 151cm
- Bust: 75.0
- Waist: 56.0
- Hip: 80.0
- Shoe: 22.5
- Special skills: Singing, dancing
- Hobbies: Karaoke, Disney, Talking with friends, movie appreciation, Listening to music, writing poems, painting
- Likes: Singing, the sky, the sun, rainbows, rainbow-colored earmuffs, Earmuff members, music, trumpet, close friends
- Dislikes: Work, Tests, Flames, Annoying people, Narcissist people
- Favorite Colors: Blue, Light blue
- Favorite Artists: Ikimonogatari, Kanjani Eight
- Favorite Manga: Attack on Titan
- Favorite Game: Dangan Ronpa, Vocaloid
- Favorite Western Shows: The Grim Adventures of Billy and Mandy, Codename: Kids Next Door
- Favorite Food: Chocolate, Vegetables, Ice
- Least Favorite Food: Most seafood, Chicken, Eggplant, Bitter melon
- She has posed for Best Jeanist.
- Her favorite sport is dance.
- Her favorite animals are dogs, cats and rabbits.
- Her favorite place to be is on her futon.
- She'd like to go on a date to Disneyland or to the sea.
- If she won the lottery, she'd buy a house or a PC.
- She'd like to challenge herself by trying to skydive.
- She'd like to travel to Venice, Italy.
- On average, she sleeps 6-7 hours.
- Her favorite Codename: Kids Next Door characters are Wallabee Beatles and Kuki Sanban, she refers to them as "WallaKuki".
- Her favorite Vocaloid characters are Kagamine Rin and Len.
- She is in a fictional idol group/community on Ameba Pig called "Niji iro Earmuffs" (Rainbow-colored earmuffs) (虹色イヤーマフ).
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