「The Nameless Existence」 Junko.

She resents the moon goddess Chang'e, and as a embodiment of resentment herself, across several thousand long years, threatened the peace of the Moon Capital countless times.

She chased her longstanding desire and was just one step away with her invasion plan.

But that, too, was thwarted by the moon sages of the past and their clever plan. Junko admitted her defeat and withdrew for the time being.

What she learned from the moon sage's plan was that on Earth were those with power on the level of the gods, those who defeated her.

Junko, taking extraordinary interest in them, chose to hideout in Gensoukyou before her next invasion. For the sake of preparation and investigation…

Relentless, ingenious schemes. Enjoying it as though it were a battle of wits, with numerous rampant plans.

The moon capital had no means against the severe invasion, and gradually were cornered.