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 Tisdale negotiated with other forces on Da Xue's behalf, Attie flew over the undead army with her tricolored sword in tow, and sharp wind blades generated by her flight speed shredded a large group of golems below into pieces.

Her eyes were fixed on the spot where the largest concentration of undead was, and she dove straight at them.

A few seconds later, farther away from the undead, the soldiers guarding the city wall noticed a bright explosion erupt in the distance, where the undead were. A ring-like shock wave began to spread out from the point of impact, and soon reached the sturdy city wall, which was far away, causing it to shake.

The soldiers knew how devasting the impact must have been, as the effects of its tremor were felt so far away.

Attie stood at the center of a crater, alone, examining the marred landscape around her. In a low voice, she said, "Not good. It's not enough… Their number is simply too much."

A Different Transformation