Durarara!!x2 Shou Episode 04

"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.

Synopsis
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, Kyohei Kadota et al’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 From
adapted from what manga or LN chapter?

Referbacks
references to previous episodes?

New Characters

 * Kine

Characters
In order of appearance (not including OP)
 * Celty Sturluson
 * Toramaru
 * Kururi Orihara
 * Mikado Ryuugamine
 * Yellow Scarves
 * Anri Sonohara
 * Kyohei Kadota
 * Erika Karisawa
 * Aoba Kuronuma
 * Saburo Togusa
 * Walker Yumasaki
 * Shinra Kishitani
 * Egor
 * Ruri Hijiribe
 * Shizuo Heiwajima
 * Tom Tanaka
 * Namie Yagiri
 * Izaya Orihara
 * Max Sandshelt
 * Kasuka Heiwajima
 * Simon Brezhnev
 * Dennis
 * Mika Harima
 * Seiji Yagiri
 * Emilia Kishitani
 * Mizuki Akabayashi
 * Aozaki Shū
 * Takashiaki Kazamoto
 * Haruya Shiki
 * Blue Square

Cultural References

 * 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.