im looking for manga's or web comics about a class or large group or people being sent to a fantasy world like setting but instead of the main character being one of the students its either a teacher or and adult figure that they all lean on for guidance in this strange world,basically a displaced story that actually makes sense.

cause lets face it the last thing a bunch of school teens want is responsibility for themselves and could realistically see an entire class of rowdy students hide behind the coat of their seriously stressed out teacher who has the moral obligation to keep them safe from the dangerous[m] world around them.

if something like this exists,even if just in novel form id LOVE to read it.