Mizuki has been the primary "feature" for the following major in-game events:

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

: This was Mizuki's first focus event, which introduced the commission song "ID SMILE" .

: A late-game event exploring Mizuki's past and secrets.

: 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.