What's the name of the cartoon with wings and colorful diamond squares hanging together?

Oriental Engineering Series-azazel Concert Hall

The role you're talking about is, uh-Miss Flandre Scarlet.

Chinese name: Flandre Scarlet.

Japanese name: フランドール? スカーレット

English name: Flandre Scarlet.

Race: Vampire

Ability: the ability to destroy almost anything.

Danger: extremely high

Human friendliness: extremely low

Main venue: azazel Concert Hall

Title:

The devil's sister (the devil's sister, The Magical Kingdom of Dongfanghong and Seeking Oriental History)

Terrible fluctuation (fear of fluctuation "Oriental Flower Post")

Theme song: United Nations Owen, is that her? (United Nations ォーェンはなのか? Dongfanghong Mofa Township)

Debut works:

Temporary stage owner of Dongfanghong Magic Town

Oriental Flower Post Bar Lvex