Yes... she is.

So that method existed...!

The existence of the Hero's sidekick position...!!

If we follow the schematic of one hero vs. female villain...

...there may be only one option for pairing up.

In the case when a female character becomes the hero's sidekick...

...the position of the main heroine becomes eternally immovable.

A heartless kind of logic!!

Suspicious...yeah...I guess, in a way, she's even more suspicious than a monster.