What animation is this picture?

From Animation Works: Rebellious Lu Luxiu

Real name: Kouzuji Keren.

Gender: Female

Age: 17 years old

Height: 167cm

Birthday: March 29th, 2000.

Blood type: type B.

Constellation: Aries

Eye color: green

Hair color: red

Brother: Red Moon Naoko

Family: father, mother and brother (deceased)

Mounts: Honglian I, Honglian II and Honglian Shengtian VIII (the improved body has advanced functions such as floating ability, shield status, long-range shooting, wide-area attack, enriching goddess net, etc., and the total energy is distributed all over the body, even blocking Suzaku's hadron cannon effortlessly, becoming the strongest body).

Subordinate unit: Zero Team (Zero Sineitai)

Position: Captain

Origin: A mixture of Japanese and British.

Personality: combine rigidity with softness.

Karen's father is from England, while her mother is Japanese. On weekdays, she works as a maid in Keren's home, always guarding her silently, but she doesn't understand her behavior. Later, I found out that my mother regretted her deep love. Keren was deeply influenced by his brother and supported the Japanese liberation movement since childhood. After his brother died, he joined the Japanese liberation group. On weekdays, she appeared in school as a sick lady, and then she met Zero (Lu Luxiu) in another action and joined the Black Knight. She is the earliest supporter of zero, and Keren is an excellent pilot, who has the strength to compete with the knights of the Round Table. With the help of constantly improving red-violet creatures, it is even more powerful, even surpassing the strength of Suzaku. It is called the number one trump card of zero. At the end of the first film, it discovered the true face of zero, but the second film still followed zero. Later, he was captured and handed over to Britta's army because he failed to replenish his energy with star carvings in time during World War I. After being rescued, he drove the Red-violet Saint-Heaven fighter to completely surpass the power of the Round Table Knight.