Dressed as an Innocent Female Counterpart

How can one survive by dressing up as an innocent female supporting character? Of course it's a crazy hug! Become sworn brothers with the male and female protagonists, and find brothers and sisters from masters and heroes from all walks of life! System daddy no longer has to worry about my innocent and tragic death! Accidentally saved an invisible supporting actor? Hey, this is the boss of the villain boss! I'm going to die, I'm going to die... There will be no good end if I get entangled with the villain! But, how come it has always been safe and sound? How did the villain become a good person? Who can explain it!