Aibou (相棒) is Shishou's traveling partner. He eventually settles down in the Kind Land, where he runs a persuader shop.
Appearance and Personality
Aibou is described in the novel as short but handsome. He kept his persuader, nicknamed "Woodsman" on his left hip. Aibou is left-handed, as shown by Woodsman's original design, with its safety, slide stop and magazine catch on the right.
In his old age, Aibou seems to enjoy his sleep and spoke rudely when awoken abruptly. However, he seemed to lighten up in spirit when he saw Canon in Kino's hands, and even lent her a replacement .45 caliber double-action revolver and bullets during the duration of the repairs.
Near the end of Kino's stay, he gifts her with Woodsman, stating that because of his age, he was no longer able to travel, but wanted his persuader to continue its journey. During her firing practice with the Woodsman, he also remodeled its holster to its current configuration.
- When Kino meets Aibou in another country, he inquires about Shishou only for Kino to say she didn't know who Shishou was. She later states that she was instructed by Shishou to say so for her own safety, and wondered what she had done in the past.
- Aibou is referred to as deshi in the 2017 Tasuketsu Drama, however, the credits list him as 相棒 (Aibou).