The Have-Not

Short Summary
Osamu recalls the days leading up to Rinji Amatori's disappearance as he lies unconscious in the hospital.

Characters in order of appearance
Characters in italic are only seen briefly and have yet to make a proper appearance.
 * Katsumi Karasawa
 * Motokichi Kinuta
 * Eizō Netsuki
 * Masafumi Shinoda (Current then Flashback)
 * Masamune Kido
 * Yūma Kuga (Current then Flashback)
 * Chika Amatori (Current then Flashback)
 * Yōtarō Rindō
 * Raijinmaru
 * Kyōsuke Karasuma (Current then Flashback)
 * Reiji Kizaki (Current then Flashback)
 * Osamu Mikumo (Current then Flashback)
 * Yūichi Jin (Current then Flashback)
 * Replica (Flashback)
 * Mira (Flashback)
 * Hyrein (Flashback)
 * Shun Midorikawa (Flashback then Flashback)
 * Sōya Kazama (Flashback then Flashback)
 * Kirie Konami (Flashback then Current)
 * Rinji Amatori (Flashback)
 * Collaborators (Mentioned)
 * Shūji Miwa
 * Shiori Usami
 * Takumi Rindō
 * Izuho Natsume (Mentioned)
 * Masataka Ninomiya (Flashback)
 * Ai Kitora
 * Arashiyama Squad (Mentioned)
 * Yōsuke Yoneya
 * Kōhei Izumi
 * Haruaki Azuma (Mentioned)
 * Seiji Mizunuma (Flashback)
 * Kasumi Mikumo

Triggers in order of appearance

 * Lampyris (Hyuse/Flashback)
 * Scorpion (Yūichi Jin/Flashback)

Adapted Chapters

 * Chapter 82

Differences Between the Anime and Manga

 * The anime adds scenes of various characters dealing with the aftermath of the Second Large-Scale Invasion
 * In the manga, other characters were not directly seen visiting Osamu. Instead, they were mentioned in Kasumi's flashbacks.

Errors

 * In Osamu's flashback, Ninomiya is depicted with black hair despite having brown hair. This is fixed in his subsequent appearances, including Episode 65, which reuses footage from this episode.