Arlecchino is a clown-like Aragami that appears in God Eater Online. It's part of an event that started in 28/04/2017.
Trivia
- Arlecchino is a spoken opera by Ferruccio Busoni in German, 1913. The opera's other name is Die Fenster, which can be translated to Harlequin or The Window. Read more here.