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？

Watching Laeticia pretend to be fine made Baiyi pause. "You looked fatigued, Laeticia. I think you need good sleep first before we discuss anything."

"Well…" Laeticia lowered her head in acceptance. The respite she could gain from a good rest was enticing, but she remembered her position as Vice-Principal of the faculty. It would be unfitting for someone of her position to sleep in the middle of the day, a time when the day's operations were still underway.

"Here, lemme help you," Baiyi said, using his mana to make a hammock. He pointed at it, indicating that she lay down on it. "I'll cast a sleep spell on you so you can sleep quickly. It will be a power nap that'll last for two hours at most."

"I-is that so?" She breathed, her eyes gliding over the hammock longingly. The temptation grew stronger until she relented and nodded.

The Source of Her Struggles