After Possessing, My Childhood Friend Is a Psychopathic Second Male Lead

I ended up transmigrating.

As if that weren’t unfair enough, of all things I became an extra destined to be killed. Not even by the main character, but by a psychopathic sub-male lead?

Since I knew the original story anyway, I tried to survive by taming him somehow, but what was this? He ended up becoming obsessed with me instead?

“You’d better not think of running away from me ever again.”