Summary:

A rotten country has summoned heroes without anyone’s permission like usual.

Typical.

The three heroes are like any normal heroes - They accept their task to save the world.

However, when the fourth hero appeared...

"AAH! NOO ONIICHAN! THAT PLACE IS..."

She got caught in the middle of playing eroge.

This is a story of a girl who does whatever she wants, whenever she wants, to live the way she wants.

Not as a villain or a hero, but as a pervert.