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？

<p>The angels were to descend tomorrow, 'when the light was at its brightest', according to the revelation received by the Pope. In Isthyre, that was nine in the morning, and this left the Church and the Voidwalkers little time to make last-minute preparations.</p>

<p>The Church had decided not to attack anymore; instead, it focused on the angel-summoning rituals. What remained of its army was two-thousand crusaders; one thousand paladins; two thousand men, who were tasted with supplying ammunition and guarding outposts; and one thousand templars, some of whom were newly-ordained templars. The Pope had ordered his underlings to lessen the requirements for becoming a templar, making a lot more people eligible to be ordained. There was also a group of five hundred clerics on standby to support the army. </p>

The Day Before The Final Battle