|Sister Nana / Nana Habutae|
|シスターナナ / 羽二重 奈々|
|Shisutā Nana / Habutae Nana|
|Age||? (college student)|
|Relationship Status||In a relationship|
Sister Nana is a main character from Mahou Shoujo Ikusei Keikaku. A veteran N-City Magical Girl, she has dedicated her career to protecting the city and bringing a message of peace. Nana is a rather optimistic and hopeful woman who tries to see the good in people, even those who have no goodness. Sister Nana's magic allows her to increase the capabilities of anyone within her field of vision.
- She has known Weiss Winterprison since high school and developed a romantic relationship later on.
- Sister Nana and Weiss Winterprison are lovers and live together in an apartment. She cooks delicious meals such as curry and stews for both of them.
- Weiss Winterprison is her ideal prince whom she treasures, and she loves to be protected by her, and yet as magical girl, her strength outshines hers, so she wants to help her become a magical girl, too.
- When Fav said something which terrified her about the death of the magical girls, she hugged Weiss Winterprison seeking her protection.
- At the beginning of episode five she held hands affectionately with Ripple but Ripple threw her hands away, and in the process Nana accidentally fell on Weiss Winterprison.