16 at the beginning; 24 in the last chapters 16 October February
Mina is from Hokkaido. She's another member of Tsukikage theater and works part-time as a tutor. She's the most feminine girl in Tsukikage's company. Even if there are some misunderstandings between her and Maya, they will still be friends when Maya is not acting with her any longer.
(Source: Stage Storm)