Éclair

She is the captain of the Maginot Girls' Academy Sensha-dou (tankery) team and a second-year high school student. She has long black hair. Her beloved tank is the Somua S35. Her code name (given not to her personally, but to her tank) was "Heart Blanc" (White Heart) → "Spade Bleu" (Blue Spade).

Feeling dissatisfied with being overlooked since their victory in the national tournament, she believes the cause is the defensive tactics centered around treating heavily armored tanks as fortresses, which have been inherited for generations. Criticizing the previous tactics, she suggests a change to the team's captain, Madeline. However, her proposal is rejected, leading to a challenge where the loser must quit Sensha-dou, seen as an insult to the traditions of Maginot Girls' Academy.

Ever since she saw her on screen as a child, she has admired Miho Nishizumi. Therefore, she is well aware of the strength of the Nishizumi style. When it was decided that they would have a practice match against Ooarai Girls' Academy, she was astonished to see Miho's name among the members. However, upon meeting Miho for the first time, she feels a different impression compared to Miho's mother Shiho or her sister Maho.