Portals

Luna is a normal high school student, who on a common day on her way back home encounters strange creatures on her way. As if that weren't enough, after this at least strange meeting, she finds herself with no way out when she comes across a portal and has no other option but to enter that weird portal in front of her. After this event, the character is teleported to what would be another dimension, starting her journey back to the real world, the place without all those monsters and obstacles at all times.