During his fight with Korekuta, he accessed Steel's memories and found out he was on this planet to visit a girl he knew since she was 7. It has been 12 years since he visited her since his new owner used him for war but Korekuta came to fight him when he was headed to her village. Korekuta being a sadistic bitch, teleported them to the valley her village was in and sent a Physic Shot at the village. But even though Steel moved in the way and took the hit himself, the entire village was destroyed and he found her barely alive before she ended up dying in his hands. This incident is what activated his bloodlust mode and to crazy on Kore