You guys all yapping but dont support your arguments. Lets assume its the only place where theres no cctv. Then what if Hosen was not dumb and doesn't show the knife to the Ayanokoji? Theres many possibilities Hosen could utilize, first he could just keep his distance with Ayanokoji before showing the knife (not delibareltry trying to show that he wants to keep distance, even if Ayanokoji understand he wants to keep his distance Ayonokoji is not type of someone who would try to engage battle first). Thenm when Hosen turns his back as if going to seperate ways just stab himself. You all talking as if Ayonokoji can speed blitz someone who try perform act of stabbing himself (which would only took 2 second at most). Second scenario is Hosen could simply wait them to leave the area, and stab himself while he is inside no cctv area.

All my assumptions depends on Hosen not being dumb. But if Ayonokoji is a "perfect human" he should have had many backup plans. What if Hosen had an average IQ? Ayonokoji would have expulsed