A Smile type 2nd year, Marika is enthusiastic and easily distracted, but this also means she loves trying new things.
In M's songs, Marika will most likely take the role of Nico, and in Aqours, she will usually be Chika, though this is subject to singer preference on a song-by-song basis. This does not mean she needs to sound like either, only that she is likely to sing those lines.