Elf no Oshiego to Sensei

Kobayashi Hiroki is a teacher for a tribe of elf students who came from another world. No one is sure why the world where the elves come from collides with our world. Hiroki however has fallen in love with Laranoa, one of the otherworldly students, which is strictly forbidden… So they act on their love in secret whenever they get a chance to be alone.

It’s a trap! Our main character, Hiroki, one day found a lady with dark skin passed out on the school’s campus and took her to the nurse’s office. She obviously was from the other world so Hiroki tried calling the proper organization that deals with that, but he gets pushed down by the elf. Her name is Iluza, and she’s a dark elf who has red eyes and set up Hiroki. Entrancing him with her magic, Hiroki can’t help his desires even though he is dating Lalanoa…