Mushi no Ou ~Subete no Mesu wa Waga Shison no Naedoko~

Humans and insects had been avoiding conflict by not encroaching on each other's territory. As a result, the insects had been sharing some of the benefits born from the deep forest with humans. However, a little over a decade ago, humanity stole "power" from the Insect King and sealed him deep within the forest. With the power gained from the insects, humans increased their national strength, eventually forgetting their fear and reverence for the forest, instead encroaching upon it. Then one day, adventurers exploring the depths of the forest were violated and brutally murdered, sparking the beginning of a series of events.

[Translated from Getchu]