Satou Masuki is a second-year high school student at Shirayuki Private Academy, an all-girls' Catholic school, which she has attended ever since kindergarten.
Masuki has short blonde hair which barely reaches her shoulders, with asymmetrical fringe, as well as dark gold eyes.
Masuki wears a high-waisted wide leg pants with a cropped black top, over which she wears a deep red sukajan jacket with white stripes and pictures of Hanyo Usagi on the front. She wears black ballet flats without socks. Masuki does not wear any jewelry or accessories. Her style can be described as sukeban.
Despite her sharp gaze and rough, delinquent-like appearance, Masuki likes cute things and is skilled at baking cakes. She is a straightforward but enthusiastic girl with a passionate heart, and values her friendship with the other RAISE A SUILEN members. She can be quite playful with her bandmates, and especially likes teasing Chiyu. She loves cooking, as well as talking about it, and even works part-time at a ramen store called "Ramen Ginga".
She is a very skilled drummer, however, when she gets too immersed, she tends to fluster the other band members with her difficult improvisation performances, which made it difficult for her to join a band previously. Because of her violent and impulsive playstyle, she is called a mad dog (狂犬).
Masuki admires Maya a lot and even knew of her before she became Pastel*Palettes' drummer. She even tends to mimic Maya's speaking style when she speaks with her. Likewise, Maya also admires Masuki and calls her "King".
A list of characters Masuki interacts with in the game (during Lives and in the dialogues at the end of every game).
Satou (佐藤): Sa (佐) means "help, aid" and Tou (藤) means "wisteria."
Masuki (ますき): Her first name has no specific meaning due to being written in hiragana.
- She and Rei were work colleagues back when they were both working mainly as support artists.
- Adding to this, in an in-game line, Masuki mentions that she and Rei "go way back." This might also be a reference to the fact that Natsume used to play the drums as a support artist for Raychell at one point.
- She has the same height as Kaoru.
- Masuki's birthday, May 12, is the same date when RAISE A SUILEN (at the time, named THE THIRD) played as the opening act for Poppin'Party's 5th Live, HAPPY PARTY 2018! during BanG Dream! 5th☆LIVE.
- Masuki owns a scooter license and loves going on rides.
- Masuki dislikes waking up early. She also has the special skill to fall asleep anywhere she lays, even if it's on the floor.
- Masuki enjoys reading shounen manga and also loves a shoujo manga series called Miracle Drum☆Snappy-chan (ミラクルドラム☆スナッピーちゃん).
- She also likes watching anime movies.
- wikipedia:ja:BanG Dream!#RAISE A SUILEN
- Masking's Menu Line - Bikes are great. Helps clear your mind when you're on the road.
- Let's Get Ramen!/Card Story#Episode
- From the Past/Event Story