VIDEOS:
Jimushi
After Kurohagane's 2nd boss fight, Jimushi betrays the cyborg by taking Akujiki from him with Hisui's help. When Hibana has defeated Jimushi, he's about to entrust Akujiki to her when Kurohagane shows up, takes back Akujiki and kills him as payback, much to Hibana's horror.
Example of:
Karmic Death