: Every focus event releases a high-rarity card (4-star) for Mizuki that often includes a unique "After Training" illustration and a special costume for 3D music videos.
In Project SEKAI: Colorful Stage! , is a core member of the underground music circle 25-ji, Nightcord de. (Niigo) and is "featured" as the central protagonist in several major story events. These focus events typically debut a new 4-star card and a commission song tailored to Mizuki's character arc. Featured Focus Events Akiyama Mizuki
: Mizuki serves as the group's video editor and is known for their energetic, albeit sometimes evasive, personality. : Every focus event releases a high-rarity card
: One of the more recent major focus events, featuring an "After Show" virtual live for fans. Key Features & Skills (Niigo) and is "featured" as the central protagonist
: A significant story chapter focusing on Mizuki's personal struggles, featuring the song "Lower One's Eyes" .
: This was Mizuki's first focus event, which introduced the commission song "ID SMILE" .
: Mizuki is voiced by Hinata Sato , who frequently appears in featured official livestreams like the Colorful Corner series.