[ Animation Sex Movie ] Elf no Oshiego to Sensei 01

He is a teacher to a tribe of elf pupils who have travelled from another planet to study with him. No one knows for certain why the realm from whence the elves originate collides with our own reality. In contrast, Hiroki has developed feelings for Laranoa, one of the otherworldly pupils, which is highly prohibited... As a result, whenever they get an opportunity to be alone, they indulge in their passion in secret.