After Transforming into a Saintess, I Became the Final Boss

[Transformation (no marriage) + power fantasy]

[Male and female forms switch during the early story; a complete transformation comes later]

Su Cha never imagined that on the very first day after transmigrating into a game world, the young lady who was the final boss would show up at his door.

As a descendant of the Saintess Clan, he made a decision that betrayed his ancestors to stay alive: he struck a deal with the final boss, a member of the Demon Clan.

Naturally, he was soon punished by his ancestors.

The next morning, Miss Su Cha, wearing an unusually loose nightgown, stared at the blonde bombshell in the mirror and fell into deep thought.

At the same time, the final boss, the sworn enemy of the Saintess, turned back for reasons of her own.

Hearing the increasingly urgent knocking, Miss Su Cha sneered inwardly.

Perhaps the way of the plushie ball lies within... Pah!...

What can a mere demon do to her?

As a descendant of the Saintess, would she really join forces with the Demon Clan?

There was nothing for it but to fight to the death.

As long as she lived, the Demon Clan would never restore its kingdom! It would remain nothing but an absurd fantasy!

In the year 2300 of the Federation calendar, the Demon Clan successfully restored its kingdom.

[Based on the above, identify the chief war criminal responsible for the restoration of the Demon Duchy, and explain why it was the Saintess of Chaohuang, Su Cha.]

Excerpt from A Collection of History Questions for the New Federation Entrance Exam

This book is also known as:

“An Absurd Fantasy”

“Help! I'm Surrounded by Divine Beauties!”

“Miss Su Cha Is Still the Ultimate Tough Guy Today”

“Wait, You're All This Weak?”