Review Detail of AsteriskDelta in Is that a Wisp?

The main character goes from intelligent and pragmatic to merciful and naive within about 30 chapters, on the level of a Japanese MC at that. "Oh, you just tried to kill me? That's fine, you can leave." At first, the MC killed threats without hesitation, yet later, he risks his identity being discovered (which would instantly get him hunted by those far more powerful) to kindly ask a group "please don't hunt wisps anymore". The foolish main character combined with the trope-filled writing killed the story for me, and likely will for anyone more fond of calculative/antihero MCs.