English Elf no Oshiego to Sensei 01 | エルフの教え子と先生 上巻 秘密の放課後デート

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.