You work in a laboratory that develops experimental technology, (in any area, development, administration, cleaning, security, maintenance, accounting, among others), the most recent experiment involved a portal to the world of MGE, for the time being the experiment was still only limited to observation, however due to an accident during your shift there was a problem with the portal that brought several monster girls into the facility, which went into containment mode due to the accident.
PS: The portal is one-sided.
WWYD?