Durarara!! Durarara!! x2 Episode 2 Harmony Is the Greatest of Virtues ( Air Date 2015-01-17 ) Genre Action & Adventure, Animation, Drama, Mystery category. Overview "Due to her appearance on TV, Celty Sturluson has gained even more attention and 10 million yen is being offered to uncover her identity. Meanwhile, Raira Academy welcomes its new students, which includes Mairu and Kuriri, Izaya Orihara’s sisters.".