Sixteenth Basket of Mantaos

Imagine being forced to live, after death, as incorporeal bodies trapped in a vast space of nothingness for thousands of years, with nothing to do but exchanging past memories with other cohabitants (read: weirdos).  Everybody wanted out, but there was no way to leave the Void... 
Until one day, a young man was finally summoned, as a powerful but reluctant mentor, by a bubbly and motivated but completely naive young girl. Baiyi, finally out of the Void, was the only one who could save all of the other 32 souls from their prison and his summoner might just be The Key to their freedom.
However, Baiyi had to use the techniques and abilities the other souls had taught him throughout the years, and together with his own extensive knowledge of anime and game tropes from his shady and dangerous past as an otaku, to face the biggest challenge of them all: training the clumsy young girl he was forced to partner up with… into a competent sorcerer!

EndlessFantasy Translation 

Why Did You Summon Me？

A sea of black flames enveloped the invading believers. Laeticia — or, to be more precise, 'Dark Laeticia' — laughed maniacally. Guarding the gate by herself was an incredible feat — one she achieved by relentlessly assaulting the invaders.

Some guards that had gotten enough rest attempted to help Dark Laeticia, but they were met with a cold glare. "Sit down, useless trash! Outta my way!"

It was a horrible reception, but it allowed the gate guards to get the rest they needed.

"For some reason, I think this Laeticia is really cool. Oh, her name is Jeanne, now, right?" Nydore mumbled. With Laeticia dealing with the enemies, Nydore finally had the chance to rest and nurse the wounds on her fingers, and while doing so, she watched Laeticia fight.

Cruelty Is Approaching