"When in Rome, Do as the Romans Do" is the fourth episode of Durarara!!x2 Shou and the thirtieth episode overall of the Durarara!! anime.


Chaos reigns in Ikebukuro as biker gangs and remnants of the Yellow Scarves vie for the 10 million yen bounty on Celty’s head. Dragged into the fray, Mikado, Kururi, Mairu, Kyouhei Kadota’s struggles continue. And at the center of it all, Celty desperately tries to evade her pursuers, all the while carrying a mysterious package. When all parties come together, the chaos will reach its peak…

The events in this episode take place around the same time as the previous episode.

Adapted FromEdit

adapted from what manga or LN chapter?


The money Celty lost is the same Mairu and Kururi used to try to meet her.


New CharactersEdit


In order of appearance (not including OP)

Unanswered QuestionsEdit

Cultural ReferencesEdit

  • In Erika's place, you can see there a Persona 3 Midsummer Knight's Dream movie poster and a Sword Art Online II Anime Poster, although this poster took place in 2014, a while Durarara's timeline was in 2010 or 2011.
  • Erika also has a Samurai Flamenco poster by her bed.