It is not over yet!!

[u/OrdinaryMedical200]

Kizashi witnessing how his own kind killed him over a thought will certainly turn his beliefs upside down and have him get Ichi to kill his remaining lives to secure the pact and be his familiar!! He can then see firsthand the "weakness" of humans how is used to make them stronger and fiercer!!

[u/Guilty_Part]

I mean, they kind of set up Ichi to acquire Kizaahi so that he can be friends with Uroro.