It is the Entrance Ceremony at Raira Academy, and the auditorium swells with a varied mix of emotions emitted from the students. Amidst all this is Rio Kamichika: a girl with a notably dark vibe following her.

After losing contact with her brother Seiji, Namie Yagiri enlists Izaya's help to find him. While roaming through Ikebukuro, Seiji and Mika Harima stumble onto Shizuo and Celty and a heated pursuit begins after Celty figures that the head attached to Mika's body is actually hers.

Half a year has passed since the Dollars meeting and Ikebukuro seems to have returned to normal. But underground, the Yellow Scarves and the Slasher are becoming increasingly active. Darkness approaches, ready to destroy the days of peace.

Anri is targeted by the Slasher, but Kyohei’s gang moves to rescue her. Shizuo and Celty join in, and after defeating the Slasher, reveal his true identity. However, this moment of relief doesn’t last as Celty reads what has been posted in the chatroom.

Anri notices something is wrong with Masaomi, and takes action to find out what it is. Elsewhere, a gang-war breaks out between the Yellow Scarves and the Dollars over the Slasher’s identity. The standoff grows as Mikado’s desire to stop it is ignored.

A gunshot resounds from an alley, echoed by a phone call for Masaomi. Mikado rides with Celty, and Anri learns the truth. Their hearts are filled with trust, doubt, and unease. Everything rushes toward a conclusion, and Izaya enjoys the chaos.

Filled with unwavering determination, Masaomi enters the abandoned factory, and encounters the unexpected. At last: Masaomi, Mikado, and Anri face off. Although each of them carries inexpressible feelings, they eventually find an answer...

While transporting some mysterious luggage, Celty attempts to escape the biker gangs out to claim the 10 million bounty that’s been placed on her. Caught up in the chaos, Mairu and Kururi join with Kyohei and the others.

Aoba continues to urge Mikado to become the leader of the Blue Squares. Varona and Sloan, meanwhile, maintain their pursuit of Celty as the Awakusu group searches for both Akane and Shizuo.

Akane grew up loved by her family, wanting nothing. When she learned the truth behind the family business, it was Izaya that reached out to her. In the present day, the conflict intensifies between the Dollars and Toramaru, as Kadota and Chikage face off.

As Izaya’s scheme exposes Chikage’s girlfriend to danger, Mikado attempts to stop the cruel reality caused by a runaway Dollars. Meanwhile, Akane returns home with Celty, but the conflict over Akane seems destined to converge…

The flashpoints that had been smoldering in several places unleash major mayhem, swallowing the city of Ikebukuro. In this mayhem, Mikado’s answer is given.

It’s summer, and Anri has begun to worry about Mikado. The popular idol Ruri has been plagued by a malicious stalker. It seems that stalker is in the Dollars. In an attempt to obtain information, Yuhei and Ruri visit Shizuo...

He was in love with Ruri Hijiribe. That was the reason why he became a stalker and loved her so intensely that he wanted to destroy her soul. All the suffering Ruri had gone through, and the reason for the killer, Hollywood, will be revealed.

Everyone involved with Ruri is becoming the target of the stalker. Shizuo and Masaomi find themselves caught up in the action and encounter a member of Blue Square in the midst of it. With Anri in imminent danger, Masaomi seeks out the truth.

Kadota was in a hit-and-run and the resulting rumors have Saburo and Walker taking action. In an effort to get information on the Dollars, Shuji Niekawa contacts Haruya Shiki. Meanwhile, Akabayashi follows up with Izaya on his investigation of Mikado.

Advancing the internal purge of the Dollars, Mikado tries to realize his ideal, which is leading to a clash with the Yellow Scarves. Various incidents are further entangled as another uproar occurs in Ikebukuro, and the story deepens into further chaos!

In spite of the mayhem that has been taking place in Ikebukuro, Shinra Kishitani and Celty Sturluson have decided to go on a short trip. Excited to finally be going out with the one he loves, the underground doctor makes it his priority to give Celty his undivided attention, even if it means rejecting phone calls from his good friend Izaya Orihara.

However, despite his hopes of having a peaceful holiday, Ikebukuro's various residents continue trying to reach him. Furthermore, just as Shinra begins to enjoy reminiscing about old memories on a carriage ride together with his beloved, Celty starts to notice a strange presence...

Izaya and Shizuo prepare to face off as the city fills with a mob possessed by Saika.

The number of Saika possessed people continues to increase as they fill the area around Russia Sushi. Anri heads to visit Celty and the Blue Square prepare to confront Chikage, all while Izaya and Shizuo fight to the death.

Above the confusion of the city below, Mikado and Masaomi finally reunite. Masaomi frantically attempts to persuade his friend, but… Meanwhile, Shinra continues after Celty and encounters Kasane, who tells him the reason he was abducted.

A boy who yearned for the extraordinary, and the twisted love story that swallowed up too many people, finally draws to the end of their performance!