Gaiden Chapter 4.8

Justice Ministry Main Building / Morning / Sunny ⑧ (司法省本館／朝／晴天 ⑧,) is the eighth part of the 4th chapter of the Bungo Stray Dogs Gaiden manga.

Summary
The Engineer is assaulted and restrained by Aoki, while Ango and Murakoso arrive to thereby take over the case. Commending Tsujimura's work, Ango reminds his former trainee of his past teaching and that they must now handle the culprit who killed a Justice Ministry official. Ango then greets Ayatsuji and apologizes for their tardiness, promising to pay him afterwards.

With the Engineer being taken, Ayatsuji advises Ango not to take over their case, sensing that Kyōgoku's full plan is still bleak and therefore might entrap them in the end. Ango takes his warning lightly, merely reasoning out that the Justice Ministry is blaming the Special Division for Sakashita's death. As such, Ango turns to the Engineer and menaces to expose the culprit's involvement.

As they prepare to head back, Asukai is told by Yoshino, one of his subordinates, that he keeps on hearing something strange, which Asukai, Tsujimura, and the others do not hear. Yoshino expounds that it sounds like cloth and strings rubbing, to which the Engineer tells Ayatsuji that the Sorcerer wishes to exchange pleasantries, as well as valuable intel, with him.

With Ayatsuji intrigued, the Engineer explains that it is for his ears only as an old friend of the Sorcerer's, directing him to take a communicator from his coat. With Ango's approval, Ayatsuji takes the communicator and listens with the earpiece; on the other line, Kyōgoku tells Ayatsuji not to worry, ensuring that he shall not hurt him.