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？

Laeticia was finally pacified. If things remained that way without any more "uncalled excitement", she was expected to remain relatively calm and stable all the way to the war with the Church.

At least, that was what Baiyi was banking on. He really hoped that was the last of this issue. It had not been easy for him, at all.

With that being said, it was just as… tempting to imagine a straight-laced gal like Laeticia turning dark and letting all hell break loose. In fact, one would bet that there will be some thrills to seeing a holy Saintess acting without boundaries. Unfortunately, with Laeticia's issue solved, Baiyi had basically clamped down on the chance to see it play out in real life. He was starting to regret it.

Baiyi shook his head hard, swinging that momentary weakness of thought out of his head. That fantasy was a tad bit too 'gentlemanly' for his liking.

Principal Bai Is Bad At Understanding Others