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？

In this world, pure grit and hardened backbones were of tremendous value, so it stood to reason that the crew possessed nerves of steel. This made it easy to stabilize the situation and quickly elect a Captain. That being said, watching the large marionette come to life and slaughter a dozen comrades in the blink of an eye was quite traumatic for the crew. Only two people were left on the deck: the engineer and the new Captain.

"I — a being beyond your understanding — come from another world," said the marionette, which was being controlled by Baiyi at this point. The marionette pointed at the charred corpses that littered the deck and said, "I was just curious about your world, and you welcomed me with malice; thus, I was forced to display my power."

The engineer and the new captain nodded vigorously from their kneeling positions, but in their minds, they protested. 'You started the whole thing by killing our Captain without provocation!'

Does This Battle Remind You Of Something?