This WN, also published in the West as Failure Frame, is a variant on the 'isekai summoning' genre where the summoner is malicious toward the summoned.  This particular sub-genre has become more common of late (since the straight-up good people summon heroes out of desperation setup has gotten stale), but this one stands out to me for the sheer evil and brutality of the antagonist (the goddess) and the protagonist (who is probably the epitome of an anti-hero in its most brutal form).  

One thing I liked about this story was that Mimori Touka (the protagonist) is extremely self-aware.  He knows the blackness of his own heart and revels in it at times, without being malicious toward good people.  Rather than calling him a hero, it would be more appropriate to call him a man who takes joy in brutalizing those he thinks are like himself (evil, cruel, brutal, etc).  In contrast, he is quite kind - if not gentle - toward those of good heart, unwilling to bring harm to them even if it would bring him some kind of advantage.

This leads to most of the characters misunderstanding his motivations to one extent or another, as those close to him tend to interpret his actions in a positive way.

This story is incomplete, but it is approaching completion pretty rapidly.  I estimate that it will probably be complete early next year, for those who prefer to not have to wait.