The Supporting Extra Protects the Leads' Romance Online

Xu Heng died and was transported into a world derived from a novel about an elite academy. The System told her that she could stay alive as long as she protected the romance between the male and female leads.

So she threw herself into the battle to defend their love.

That scheming supporting girl, whatever her name is, if you want trouble, come after me!

And which supporting guy gave you permission to steal someone else's girl? The nerve!

Someone: I like you. Let's be together!

Xu Heng: Wait until my ship gets married first.

The couple I ship must get a happy ending.