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？

Only an angel could fall from such a height, make such a huge hole in the ground, and still emerge unscathed. Although the angel was not hurt, she climbed out of the hole in the ground with tears in her eyes.

The angel quickly traced her fingers along the kitty plush toy and was relieved to find it undamaged. Noirciel looked up with a sad expression, though, disturbed that she could only fly that high.

Everyone in the hall had watched the angel's jaw-dropping fall with wide eyes, but only the Pope remained indifferent. He had long since forbidden everyone there from disclosing all they had witnessed, after which he issued an order that all planned events be scrapped. Afterward, the Pope ordered everyone but a select few to never approach the angel.

How Intriguing...