Well i will try to explain some logic.. but not quite logic..
[ul]The MC got the weakest job by that world standard, but not by "Earth" standard. As the world says "A knife can be used to cook as a chef, but also can be used to kill people as warrior. it depends on the wearers". ingame world "Healer/Support" can be a killer depends on how you build it. and not to mention the MC got the "Reversal" after drink the potion. [/ul]
[ul]The MC got teleported by some BITCH, the Bitch use skill "Random Teleport" which claimed to get it to the most dangerous area when it activated as a security system of the bitch kingdom.[/ul]
[ul]MC got teleported to the most "Dangerous" place, but fortunately it was straight into the "Treasure" place, where the risk is high it is also possible the reward is should be OP (Incase you guys know the rules of playing game RPG, MMORPG, etc. that based on leveling). Remember this is a "Random Teleport" , so yeah it is possible for him to get there. [/ul]
[ul]There is a "MIMIC" that have level 500 and was easily killed. Remember this is a "TREASURE" room in the "Dangerous" zone or area, so we can see this "MIMIC" as also part of the reward. And fortunately it is weak to the corrosion and was caught off guard. you can think of it as an "Event" in game where some monster has high level but easy to kill. it is like killing a golden slime that gave you plenty EXP. [/ul]
Well to put it simple for readers with "so-so" experience it called "PLOT-ARMOR" but with Strong Scene that appear soo obvious.