Shibuya Fifteen

They all return to Kengo's place for Katsudon in preperation to leave, however Ema, remembering her past has doubts about leaving. Tsuyoshi searches for her after she hides, but to no avail. As Tsuyoshi, Ryuugo, Asagi, DJ, and Kengo are about to leave, the chairman appears and transforms into Piece in order to stop them. Asagi directs Tsuyoshi to Ema where he then tries to convince her to come with him. Meanwhile everyone else manage to defeat Piece and escape Shibuya. Tsuyoshi proceeds to the boundary, however the chairman awakes from unconsciousness and fights Tsuyoshi as Piece. Ema however appears and together, the two beat Piece once and for all. She decides that she will indeed go with Tsuyoshi to the real world. However, Tsuyoshi finds out that she was in a vegatative state and thus could only live in Shibuya, the world created by Ootomo. Tsuyoshi decides to return to Shibuya in order to be with Ema.

Kengo sends many, many Pieces after Tsuyoshi and Ema, however they defeat them all. Ema tells him of her past from the time she woke up in Shibuya, her sad memories of knowing people who were reseted, and thus her reasons for hating Piece. The next day, they try to find Ootomo in order to find out more. DJ, now the new boss of Palhands, confronts them, however Tsuyoshi words convince Ryuugo that something is wrong with the world. Although Ryuugo saves them, they are confronted by Kengo with at first one robot. Professor Ootomo gives Ema the power of a gun, which she uses to destroy the robot, however Kengo brings out an army of Robots. They run, however Tsuyoshi ends up having to sacrifice himself in order to allow Ema to destroy them all. He wakes up in the real world classroom where he finds out that everyone is asleep and for what purpose everyone is sent to this virtual Shibuya. There Kengo, the teacher of the classroom tells him that he is seat number 21, Tsuyoshi Mamiya (マミヤツヨシ Mamiya Tsuyoshi?). As he wanders through the real-world academy, he finds a piece of Ema's nail and room marked Special Room (特別室 Tokubetsu Shitsu?) containing the real-world Ema. However, an academy official stop him from entering, then returns him to Shibuya, reseted. Just before this comes to pass, Tsuyoshi puts the nail in his mouth. He once again wakes up in the midst of rubbish, just as he was at the beginning of the series.

Ryuugo does not remember who Asagi is and calls his gang instead to beat up Tsuyoshi. Tsuyoshi spends much of the next looking for people who would know Asagi, only find that only he and Ema remember her. She even finds out that the old members of Bunkamu are in fact alive, now both named Shouta, however only he remembers who they are whereas DJ believes that they are new. After hearing from Ema that this is how the world of Shibuya works, Tsuyoshi goes to Miu to once more confirm whether she has truly forgotten her identity as Asagi. When Tsuyoshi confirms that Miu does not remember, he begins to wonder who the real him is and compares his desires for Miu's old self to Ema's same sentiments. Ema finds out that Kengo is the one who is controls the city from behind the scenes, though the person in question denies it, saying instead he watches over the city. Kengo punishes Ema by marking her and sending two Pieces after her; she defeats one. She is about to be killed by the other, however the Professor Ootomo saves her.

Tsuyoshi brings DJ to Kengo's shop to recover from the medicine. He helps Tsuyoshi and Asagi shop for food in exchange for staying at Kengo's shop. On the way back, they find Haru being tormented by Palhands who are now requesting people to carry Safety Passage Badges should they not wish to be attacked. However Ryuugo decides to back off for the day when Asagi steps up to fight. Haru begs Asagi to return to being Lovegen's boss for a free Shibuya unlike the one Ryuugo wishes to create; she agrees only if Tsuyoshi goes with her. Asagi asked Ema for a nail job and tries to stop her from continuing to involve herself with Tsuyoshi, however Ema reveals that she will not let their past relationship end. After confessing her love to Tsuyoshi, she is finally convinced to return to Lovegen. There she finds out that her parents are not real and that their story is the same as Haru's parents' story. In trying to flee Shibuya, she gets run through by the train, waking up in the real world classroom, however she is soon sent back to Shibuya where she is then chased by Peace. Ema reveals that Tsuyoshi's name is Revu and that he has kept his promise. DJ calls Tsuyoshi over to save Asagi, however he is too late. Ema is stopped from following them when she is confronted by a robot of sorts.

Ema defeats Peace. Asagi brings Tsuyoshi back to Kengo's shop to eat Katsudon and heal. There Lovegen confronts their old leader whom they call a yojire, one who is marked by Piece but not dead, in search of Ema. Ryuugo meets with Asagi, striking a deal with her where if she lures Ema into a trap, then he will help her return to her group in spite of the stigma associated with being a yojire. Ema appears at Kengo's shop accepting a job to paint nails which turns out to be a trap by Bunkamu. Tsuyoshi goes to check on her when she does not return and aids her in her escape. Asagi helps them run away, but they find out she betrayed them, luring them to an abandoned parking lot where all three gangs appear to ambush the two as per the deal. They end up fleeing to the boundary of Shibuya where Asagi has a change of heart. Ema works up enough resolve to perform Merge allowing them to run away. Tsuyoshi and Asagi end up staying at Kengo's shop for the night. Ryuugo is seen to be talking with the man who is implied to be in charge of the eye blimp, asking whether it is the right time to be rid of Bunkamu.

After Ema and Piece's fight, Ryuugo passes Tsuyoshi off to Lovegen and leaves. Asagi takes him to Kengo's tattoo shop to have dinner and discuss the events that had just come to pass. There Asagi briefs Tsuyoshi on the three gangs' names, leaders, and territoriesm, however soon leaves for her part time job, forcing him to work off the bill for the meal. After staying the night, Tsuyoshi delivers Kengo's currey to Asagi, where she hears about her family. They decide to try to visit them, only to find out that they cannot leave Shibuya. Ryuugo plots getting rid of both Bunkamu and Lovegen by taking advantage of a fight he instigates between the two and keeping Piece at bay by making Ema his friend. Bunkamu takes on Asagi, but is interrupted when Piece appears, marking Asagi. However, Tsuyoshi confronts him, then recalling his true name, Tsuyoshi.