Just an Ordinary Bystander, How Did I Become Invincible?

[Urban + Superpowers + Ensemble Cast + Wild Imagination]

Qin Luo transmigrates and gets tagged as [Just a Bystander].

The effect: he cannot be selected as a target.

His rival gets six seconds as a real man, powers up and transforms, then loses sight of his target.

His ex-girlfriend is a succubus in human form, capable of mental control, but unable to select him.

The top campus beauty cheats by reading people's luck, but, sorry, there's no such person here.

Think that's the end of it?

This ability has a hidden unlock condition:

He must get touchy-feely with a superpowered person at level 4 or above to unlock it,

and it has to be... mutually consensual.

Can't find a job? Getting rejected at interviews?

Exploit a bug and get it done in one go.

How did a mere bystander become invincible?