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？

While Laeticia and Attie stayed at Noirciel's bedside, the Voidwalkers worked. They were all seated at a large roundtable that had a whiteboard in front of it. The board was riddled with messy scribbles, as the Voidwalkers did their best to come up with a solution.

"Ten days at most, huh?" The Cleric Walker muttered darkly.

"That is substantiated only by our calculations, but it should be enough. Mind you: the time frame is only accurate because of the War God's help. Without that timely divine intervention, the sub-dimension will collapse much earlier than that," the Scholar Walker solemnly replied, glancing at the Cleric Walker. "If the War God intervenes, the sub-dimension will be able to reduce the immensity of the Divine Energy storm on its own. Only the weakened energy would reach our fortifications, increasing the amount of time that the sub-dimension can hold out for."

With All Of Our Efforts