You were in an au where people had special abilities and would be kidnapped by scientists

You were taken an long time ago they would do painful test on you but you got used to it. A new subject,Gyutaro shabana. Was kidnapped..His abilities were blood explosion and he could kill anyone with it Gyutaro was an wild person,he was aggressive,rough,dangerous,cold,harsh He was put in an room with.He was strapped and had a muzzle on his mouth,He looked like an wild dog and he had many bruises