Lol MC got sent straight into the midst of the miasma-laden forest but luckily he's might be the saint they're looking for, although it's unlikely, judging by the description alone. There are at least three types of summoned heroes they always summoned, by mistake or not: It's either for winning their selfish war, for purifying incurable disease & miasma, or for cooking extraordinary food. This guy is probably the middle choice, as well as a mistake, as established canonically. & one of the required summoning tropes is always Truck-kun, as the trigger lolol.