The item Mikado got from Aoba’s brother is not revealed; instead, Mikado is coy to Aoba about the content of their conversation, and then gets distracted by Namie’s meltdown in the Dollars chatroom, witnessed by the twins.
Namie isn’t about to forgive Mikado or let him have his perfect life without reminding him that he defeated her and messed up her life, but didn’t destroy her. Namie is just one of the “loose ends” Mikado will have to reckon with before he can reach his goals.
As indicated by Anri’s eyes reddening, Kasane’s Saika slaves are out in force, blocking all the roads and alleys that lead to the area where she’s restraining Celty’s body. Shizuo, not one to break the law unless its necessary, dutifully rides past the barriers, but soon realizes that he has to break through to get to Celty. Meanwhile, Izaya has come out to observe Shizuo’s confrontation with Kasane from on high.
I loved how calm and civil everything was. Sure, Shizuo crumbles a bit of wall and tosses it at Kasane’s associate, President Yagiri, but he and Kasane do not engage in any violence. Kasane merely restrains Shizuo, putting her hand on him. Whatever would have happened next is interrupted by the arrival of Varona with Celty’s head.
I also loved how Shizuo didn’t feel in the least betrayed by his junior, because, well, he wasn’t. He didn’t disallow her from taking other jobs on the side, but does recommend she chose more carefully in the future.
Shizuo appreciates that Kasane has business to conduct, but his friendship with Celty won’t allow them to treat her as a product or thing, even if that’s the best way to describe the state she’s in.
Kasane also appreciates Shizuo’s personal investment in this situation, as well as Varona’s complicated relationship with Shizuo, and decides the best thing to do is retreat for now. Despite her best efforts, her plan ran into a hitch, and that hitch was Shizuo. Howver, Izaya isn’t content to leave things there, and drops “liquid on the litmus paper” in the form of a pile of steel beams on Shizuo. Varona pushes him out of harm’s way, but a beam falls on her leg
Now Shizuo wouldn’t have been hurt by those beams (he flicks the one off of Varona’s leg like a 2×4) but Varona acted to save him anyway, because until she’s able to destroy him under her very specific conditions (i.e. going all out), she doesn’t want him to die. Similarly, when Izaya drops an excavator on Shizuo, he catches it on his shoulder and flicks that away too, saving Varona for real.
Izaya has seen the human chemical reactions he wanted to see, and likely wants to see more tonight, but when he calls Shizuo to chat, all Shizuo says to him is “So long.” No listening to his drivel, no angry outburst, no tossing of the excavator back at him. Shizuo won’t let harming his junior pass. He’s coming for him.