"We Brave Heroes Crawl Out of the Other World Prison"

The protagonist's entire class is suddenly summoned to another world. What awaits him seems like a typical otherworld situation at first glance. However, although the protagonist obtains the occupation of a curse mage as a hero, he is deceived by the summoning country and thrown into prison. The hero and his companions, now enslaved with collars around their necks, are forcibly sent to a high-difficulty dungeon. Clear this? No way, that's impossible. We're still level 1? Amid the death and betrayal of his companions, the protagonist decides to escape prison and survive. Features jobs and skills. A growth-type cheat system. Basic updates every other day. Depending on real-life circumstances, it may be every 3-4 days. ☆ I have artwork that was sent to me.