Unlike previous mascots in the series, her costume is not based on a school uniform. Her design was made to be asymmetrical so she could look different from different angles.
Her design incorporates woodwind and brass instruments. The gold curl design on her chest mimics brass instruments and a circulatory organ. The blue jewel near her throat represents moisture in the air and water drops.
Her surname combines Meguri (巡, circulate or around) and Ne (音, sound), while the name Luka invokes the homonymous Japanese words of "nagare" (流, flow) and "ka" (歌, song) or "ka" (香, scent); thus making "songs to all around the world as scent spreads."
Teto Kasane units are not recommended as they have a tendency to irritate the Luka unit, sending it into Yandere Mode.
WARNING: Under no circumstances should you offer your Luka Megurine unit takoyaki, as she will assume that you have killed a Tako Luka to obtain the octopus meat. Offering a Luka Megurine unit takoyaki will trigger either uncontrollable crying or Yandere Mode.
IS SHE A YANDERE?
In Luka's user manual it is indicated that her units can enter various modes depending on external stimuli. One of these modes is Yandere Mode, where your Luka Megurine unit will attempt to destroy anything or anyone in sight. Advising the user to keep any scissors or shears away while it is in current mode. It is also suggested to keep away from the unit while in this mode. As well, it is highly recommended not to disturb unit while in creative mode as it sometimes trigger Yandere mode or Diva Mode.
When Luka Megurine has started sewing kimonos and crying, is an indicator that she may soon enter Yandere Mode.